I edit
- I'm entitled to my opinion
- I-Ching
- I Am a Strange Loop
- I and Thou
- I Ching
- I Heart Huckabees
- I Hope I Shall Arrive Soon
- I know it when I see it
- I know that I know nothing
- I problemi della guerra e le vie della pace
- I. A. Richards
- Iain Hamilton Grant
- Iamblichus
- Iamblichus (philosopher)
- Ian Bone
- Ian Buchanan (philosopher)
- Ian Hacking
- Ian Ramsey
- Ian Robinson (rationalist)
- Ian Thomas Ramsey
- Iatrogenesis
- Ibn al-Arabi
- Ibn al-Nafis
- Ibn al-Rawandi
- Ibn ar-Rawandi
- Ibn Arabi
- Ibn Bajjah
- Ibn Daud
- Ibn Falaquera
- Ibn Gabirol
- Ibn Hazm
- Ibn Kammuna
- Ibn Khaldun
- Ibn Khaldūn
- Ibn Masarra
- Ibn Masarrah
- Ibn Miskawayh
- Ibn Rushd
- Ibn Sabin
- Ibn Sina
- Ibn Sīnā
- Ibn Taymiya
- Ibn Taymiyyah
- Ibn Tufail
- Ibn Ţufayl
- Ibn Tzaddik
- İbrahim Hakkı Erzurumi
- İbrahim Özdemir
- Ichthyas
- Icon
- Id, ego and super-ego
- Ida Mett
- Idea
- Idea for a Universal History with a Cosmopolitan Purpose
- Idea of Progress
- Ideal (ethics)
- Ideal language
- Ideal observer theory
- Ideal speech situation
- Ideal type
- Idealism
- Idealistic pluralism
- Idealistic Studies
- Idealization (science philosophy)
- Idea
- Ideas and Action
- Ideas Have Consequences
- Idée reçue
- Idempotency of entailment
- Identity (philosophy)
- Identity formation
- Identity of indiscernibles
- Identity politics
- Identity theory of mind
- Identity thesis
- Identityism
- Ideographic
- Ideological repression
- Ideology
- Ideomotor effect
- Idiolect
- Idios kosmos
- Idol (philosophy)
- Idolon tribus
- Idols of the cave
- Idols of the mind
- Idols of the tribe
- Idomeneus of Lampsacus
- Ietsism
- If
- If-by-whiskey
- If a tree falls in a forest
- If and only if
- Iff
- Ignacio de Arbieto
- Ignacio Ellacuría
- Ignoramus et ignorabimus
- Ignoratio elenchi
- Ignosticism
- Ignotum per ignotius
- Igor Pribac
- Igor Yefimov
- Ihsan
- Ikeda Mitsumasa
- Iki (aesthetic ideal)
- Ikki Kita
- Ilkka Niiniluoto
- Illative
- Illegalism
- Illicit major
- Illicit minor
- Illocutionary act
- Illocutionary force
- Illtyd Trethowan
- Illuminati
- Illumination
- Illuminationism
- Illuminationist philosophy
- Illusion
- Illusion of asymmetric insight
- Illusion of control
- Illusion of transparency
- Illusionism (philosophy)
- Illusions
- Illusory correlation
- Illustrius Pusaeus
- Image
- Imagery
- Imaginary
- Imaginary Conversations
- Imagination
- Imaging
- Immaculate perception
- Immanence
- Immanent critique
- Immanent evaluation
- Immanuel Ben Solomon of Rome
- Immanuel Hermann Fichte
- Immanuel Kant
- Immanuel the Roman
- Immaterial
- Immaterial force
- Immaterialism
- Immediacy (philosophy)
- Immediate inference
- Immediatism
- Immigration Act of 1917
- Immortality
- Immortality of the soul
- Immunology
- Immutability
- Impact bias
- Impartiality
- Impenetrability
- Imperative
- Imperative logic
- Imperfect induction
- Imperialism
- Imperium
- Impermanence
- Implicant
- Implication
- Implications of nanotechnology
- Implicature
- Imposition
- Impossible world
- Impredicative definition
- Impredicative property
- Impredicativity
- Impression
- Imre Lakatos
- In a Different Voice
- In Defense of Anarchism
- In Praise of Shadows
- In Search of Lost Time
- In Search of the Miraculous
- In vitro fertilisation
- Incarnation and Christology
- Incarnational humanism
- Inclusion (logic)
- Inclusive Democracy
- Inclusive disjunction
- Incoherence
- Incompatibilism
- Incompatible-properties argument
- Incomplete comparison
- Incompleteness
- Incompleteness theorem
- Incompleteness theorems
- Inconnu Independent Art Group
- Inconsistent triad
- Incontinence (philosophy)
- Incorporeality
- Incorrigibility
- Indefinite monism
- Independence
- Independence-friendly logic
- Indeterminacy
- Indeterminacy (philosophy)
- Indeterminacy debate in legal theory
- Indeterminacy of translation
- Indeterminacy principle
- Indeterminacy problem
- Indeterminate
- Indeterminism
- Index of aesthetics articles
- Index of ancient philosophy articles
- Index of epistemology articles
- Index of ethics articles
- Index of logic articles
- Index of metaphysics articles
- Index of philosophers
- Index of philosophy
- Index of philosophy articles
- Index of philosophy articles (A–C)
- Index of philosophy articles (D–H)
- Index of philosophy articles (R–Z)
- Index of philosophy of mind articles
- Index of social and political philosophy articles
- Indexed language
- Indexical
- Indexicality
- Indexicals
- Indian philosophy
- Indian political philosophy
- Indicative conditional
- Indicative conditionals
- Indicator
- Indifference
- Indifferent act
- Indigenism
- Indirect proof
- Indirect self-reference
- Indiscernibility
- Individual
- Individual reclamation
- Individualism
- Individualism and Economic Order
- Individualist anarchism
- Individualist ethical subjectivism
- Individuation
- Indo-European copula
- Indoctrination
- Indonesian philosophy
- Indra Sen
- Indriya
- Inductionism
- Inductive definition
- Inductive inference
- Inductive reasoning
- Inductivism
- Industrial espionage
- Industrialisation
- Ineffability
- Ineffective assistance of counsel
- Inequality
- Inequality Reexamined
- Infallibilism
- Infallibility
- Inference
- Inference rule
- Inference to the best explanation
- Inferential role semantics
- Infinitary logic
- Infinitary logics
- Infinite
- Infinite divisibility
- Infinite qualitative distinction
- Infinite regress
- Infinitesimals
- Infinitism
- Infinity
- Infinity (philosophy)
- Influence and reception of Friedrich Nietzsche
- Informal fallacy
- Informal logic
- Informal mathematics
- Information bias (psychology)
- Information ethics
- Information theory
- Informed consent
- Informed refusal
- Infoshop
- Infoshop.org
- Ingeborg Bachmann
- Ingeborg i Mjärhult
- Ingo Zechner
- Ingroup bias
- Ingsoc
- Inherence
- Inherence relation
- Inherent
- Inherent value
- Inherently funny word
- Iniciales
- Inka
- Innate idea
- Innate ideas
- Innate knowledge
- Innatism
- Inne pieśni
- Inner peace
- Innocence
- Inocenc Arnošt Bláha
- Inoue Tetsujirō
- Inquiry
- Inside Front
- Insight
- Insolubilia
- Instantiation
- Instantiation principle
- Institute for Anarchist Studies
- Institute for Ethics and Emerging Technologies
- Institute for the Secularisation of Islamic Society
- Institute of Pacific Relations
- Institution
- Institutional Critique
- Institutional cruelty
- Institutional theory of art
- Institutionalism
- Instrumental conditioning
- Instrumental rationality
- Instrumental value
- Instrumentalism
- Insufficient reason
- Insurrectionary anarchism
- Integral theory (Ken Wilber)
- Integral humanism (India)
- Integral humanism (Maritain)
- Integrative level
- Integrity
- Intellectual
- Intellectual dishonesty
- Intellectual history
- Intellectual responsibility
- Intellectual virtue
- Intellectualism
- Intelligence
- Intelligence (trait)
- Intelligent design
- Intelligent design theory
- Intelligibility (philosophy)
- Intelligible form
- Intended interpretation
- Intension
- Intensional definition
- Intensional logic
- Intensional statement
- Intensionality
- Intensive Science and Virtual Philosophy
- Intention
- Intentional fallacy
- Intentional Logic
- Intentional object
- Intentional stance
- Intentionality
- Interactionism
- Interactionism (philosophy of mind)
- Interculturalism
- Interdependence
- Interests
- Intergenerational equity
- Intergenerational justice
- Interior algebra
- Internal discourse
- Internal realism
- Internalism
- Internalism and externalism
- Internalization
- International Academy of Humanism
- International Anarchist Congress of Amsterdam
- International Association for Computing and Philosophy
- International Association for Philosophy of Law and Social Philosophy
- International Commission of Jurists
- International Conference of Rome for the Social Defense Against Anarchists
- International Federation of Philosophical Societies
- International Journal of Baudrillard Studies
- International Journal of Žižek Studies
- International law
- International League of Humanists
- International Network of Engineers and Scientists for Global Responsibility
- International of Anarchist Federations
- International Philosophical Quarterly
- International Philosophy Day
- International Philosophy Olympiad
- International relations
- International Society for Philosophy of Music Education
- Internet Encyclopedia of Philosophy
- Internet ethics
- Internet research ethics
- Interoception
- Interpellation
- Interpretability
- Interpretability logic
- Interpretant
- Interpretation (aesthetics)
- Interpretation (logic)
- Interpretation of quantum mechanics
- Interpretive system
- Interpretivism (legal)
- Interregnum
- Intersection
- Intersubjective
- Intersubjective verifiability
- Intersubjectivity
- Intertheoretic reduction
- Interval scale
- Intervening variable
- Intisar-ul-Haque
- Intrinsic and extrinsic properties
- Intrinsic and extrinsic properties (philosophy)
- Intrinsic finality
- Intrinsic good
- Intrinsic properties
- Intrinsic property
- Intrinsic value
- Intrinsic value (animal ethics)
- Intrinsic value (ethics)
- Introduction to Arithmetic
- Introduction to Kant's Anthropology
- Introduction to Mathematical Philosophy
- Introduction to Metaphysics
- Introduction to Objectivist Epistemology
- Introjection
- Introspection
- Introspection illusion
- Intuition (Bergson)
- Intuition (knowledge)
- Intuition (philosophy)
- Intuition pump
- Intuitionism
- Intuitionism in ethics
- Intuitionist logic
- Intuitionistic logic
- Inverse (logic)
- Inverse gambler's fallacy
- Inversion
- Inverted qualia
- Inverted spectrum
- Invincible error
- Invincible ignorance fallacy
- Inviolability
- Invisible dictatorship
- Invisible hand
- Invisible Pink Unicorn
- Involuntary commitment
- Involuntary euthanasia
- Involuntary memory
- Involuntary treatment
- Involution (esoterism)
- Involution (philosophy)
- Ioan Zalomit
- Ioane Petritsi
- Ioanna Kucuradi
- Ion (dialogue)
- Ion Heliade Rădulescu
- Ion of Chios
- Ion Petrovici
- Ionian Enlightenment
- Ionian School (philosophy)
- Iosipos Moisiodax
- Ippen
- Ipso facto
- Ipso jure
- Iranian philosophy
- Irenaean theodicy
- Irenicism
- Iris Marion Young
- Iris Murdoch
- Ironism
- Irony
- Irrational Man: A Study in Existential Philosophy
- Irrationalism
- Irrationalism and aestheticism
- Irrationality
- Irrealism (philosophy)
- Irrealism (the arts)
- Irreducibility
- Irreflexive
- Irrelevant conclusion
- Irreligion
- Irresistible force paradox
- Irreversibility
- Irving Copi
- Irving Singer
- Irving Thalberg Jr.
- Irwin Edman
- Is-ought distinction
- Is-ought problem
- Is–ought problem
- Is and ought
- Is God Dead?
- Is Logic Empirical?
- Is ought problem
- Is the glass half empty or half full?
- Isaac Abrabanel
- Isaac Abravanel
- Isaac Beeckman
- Isaac ben Joseph ibn Pulgar
- Isaac ben Moses Arama
- Isaac de Pinto
- Isaac Israeli
- Isaac Israeli ben Solomon
- Isaac La Peyrère
- Isaac Levi
- Isaac Malitz
- Isaac Newton
- Isaac of Stella
- Isaac of Troki
- Isaac Passy
- Isaac Puente
- Isaak Benrubi
- Isaak Iselin
- Isabel Paterson
- Isabelle Stengers
- Isagoge
- Isaiah Berlin
- Isidore of Alexandria
- Islam and democracy
- Islamic capitalism
- Islamic ethics
- Islamic fundamentalism
- Islamic fundamentalism in Iran
- Islamic metaphysics
- Islamic Modernism
- Islamic philosophy
- Islamic theology
- Islamization of knowledge
- Ismail al-Faruqi
- Isocrates
- Isomorphism
- Isonomia
- Isotta Nogarola
- Issac La Peyrere
- Issac La Peyrère
- Issues in anarchism
- Isvarakrsna
- Italian Fascism
- Italian philosophy
- Iterative hierarchy
- Ito Jinsai
- Itō Jinsai
- Itsuo Tsuda
- Ivan Aguéli
- Ivan Aleksandrovich Il'in
- Ivan Chtcheglov
- Ivan Ilyin
- Ivan Kireyevsky
- Ivan Orlov (philosopher)
- Ivan Sviták
- Ivan Vyshenskyi
- Ivar Matlaus
- Ivar Mortensson-Egnund
- Ivo Urbančič
- Iyyun
J edit
- J. B. Schneewind
- J. Baird Callicott
- J. Barkley Rosser
- J. David Velleman
- J. J. C. Smart
- J. L. Ackrill
- J. L. Austin
- J. L. Mackie
- J. M. E. McTaggart
- J. M. Hinton (philosopher)
- J. O. Urmson
- J. P. Moreland
- J. P. Stern
- J. Paul Reddam
- J. W. R. Dedekind
- J. B. Schneewind
- J. D. Trout
- J. J. C. Smart
- J. W. R. Dedekind
- Ja'far Kashfi
- Jaakko Hintikka
- Jaan Kaplinski
- Jaap Kruithof
- Jacek Salij
- Jack Copeland
- Jack Meiland
- Jack of Diamonds (artists)
- Jack Russell Weinstein
- Jack Smart
- Jack White (trade unionist)
- Jacksonian democracy
- Jacob Acontius
- Jacob ben Nissim
- Jacob Burckhardt
- Jacob Freudenthal
- Jacob Friedrich Fries
- Jacob Friedrich von Abel
- Jacob Golomb
- Jacob Gould Schurman
- Jacob Klapwijk
- Jacob Klein (philosopher)
- Jacob Lorhard
- Jacob Needleman
- Jacobus Arminius
- Jacobus Naveros
- Jacopo Mazzoni
- Jacopo Zabarella
- Jacques-André Naigeon
- Jacques Barzun
- Jacques Bidet
- Jacques Bouveresse
- Jacques Chevalier
- Jacques Derrida
- Jacques Derrida bibliography
- Jacques Ellul
- Jacques Herbrand
- Jacques Lacan
- Jacques Maritain
- Jacques Rancière
- Jacques Rohault
- Jad Hatem
- Jaegwon Kim
- Jaime Balmes
- Jaime Giménez Arbe
- Jaimini
- Jain cosmology
- Jain philosophy
- Jaina philosophy
- Jainism
- Jakob Böhme
- Jakob Friedrich Fries
- Jakob Frohschammer
- Jakob Guttmann (rabbi)
- Jakob Klatzkin
- Jakob Lorber
- Jakob Sigismund Beck
- Jakob Thomasius
- Jakub Górski
- Jakub of Gostynin
- Jamasp
- James-Lange theory
- James-Lange theory of the emotions
- James Allen Graff
- James Beattie (writer)
- James Bissett Pratt
- James Brusseau
- James Bryce, 1st Viscount Bryce
- James Burnett, Lord Monboddo
- James Childress
- James Clerk Maxwell
- James Creed Meredith
- James DiGiovanna
- James Dunbar (writer)
- James E. Faulconer
- James Earl Baumgartner
- James Edwin Creighton
- James F. Conant
- James Ferrier
- James Franklin (philosopher)
- James Frederick Ferrier
- James G. Lennox
- James Griffin (philosopher)
- James Guillaume
- James Gustafson
- James Hall (philosopher)
- James Harrington
- James Harrington (author)
- James Hayden Tufts
- James Heisig
- James Hutchison Stirling
- James Hutton
- James L. Walker
- James M. Edie
- James MacKaye
- James Main Dixon
- James Mark Baldwin
- James Martin (philosopher)
- James Martineau
- James Mathias Fennelly
- James McCosh
- James Mill
- James of Viterbo
- James Otteson
- Jim Flynn
- James R. Griesemer
- James Rachels
- James Robb (philosopher)
- James Robert Brown
- James Tully (philosopher)
- James Ward (psychologist)
- Jamgon Ju Mipham Gyatso
- Jamie Whyte
- Jamil Sidqi al-Zahawi
- Jan Amos Komensky
- Jan Amos Komenský
- Jan Deutsch
- Jan Hus
- Jan Lukasiewicz
- Jan Łukasiewicz
- Jan Mukařovský
- Jan Narveson
- Jan of Stobnica
- Jan Patocka
- Jan Patočka
- Jan Pinborg
- Jan Sniadecki
- Jan Śniadecki
- Jan Sokol (philosopher)
- Jan Szylling
- Jan Wacław Machajski
- Jan Westerhoff
- Jan Woleński
- Jan Zwicky
- Jane Jacobs
- Janet Biehl
- Janet Coleman
- Janet McCracken
- Janet Radcliffe Richards
- Janko Prunk
- János Kis
- Jansenism
- Janus: A Summing Up
- Japanese aesthetics
- Japanese Anarchist Federation
- Japanese philosophy
- Japanese sound symbolism
- Jaroslav Peregrin
- Jason McQuinn
- Jason of Nysa
- Jason Stanley
- Jason Walter Brown
- Jaundice
- Javad Tabatabaei
- Javelin argument
- Javid Nama
- Jawaharlal Nehru
- Jay Newman
- Jay Rosenberg
- Jayanta Bhatta
- Jayarāśi Bhaṭṭa
- Jayatirtha
- Je Tsongkhapa
- Jealousy
- Jean-Baptiste Lamarck
- Jean-Francois Lyotard
- Jean-François Lyotard
- Jean-François Mattéi
- Jean-François Revel
- Jean-François Senault
- Jean-Gaspard Felix Lacher Ravaisson-Mollien
- Jean-Gaspard Félix Lacher Ravaisson-Mollien
- Jean-Jacques Pelletier
- Jean-Jacques Rousseau
- Jean-Louis Calandrini
- Jean-Louis de Lolme
- Jean-Louis Le Moigne
- Jean-Luc Marion
- Jean-Luc Nancy
- Jean-Marc Ferry
- Jean-Marie Guyau
- Jean-Michel Berthelot
- Jean-Paul Audet
- Jean-Paul Sartre
- Jean-Pierre de Crousaz
- Jean-Pierre Faye
- Jean-Pierre Voyer
- Jean-Yves Béziau
- Jean-Yves Girard
- Jean Anthelme Brillat-Savarin
- Jean Baudrillard
- Jean Beaufret
- Jean Bethke Elshtain
- Jean Biès
- Jean Bodin
- Jean Borella
- Jean Bourdeau
- Jean Buridan
- Jean C. Baudet
- Jean Capréolus
- Jean Cavaillès
- Jean Clam
- Jean Curthoys
- Jean de Gerson
- Jean de Silhon
- Jean Elizabeth Hampton
- Jean François de Saint-Lambert
- Jean Gerson
- Jean Grenier
- Jean Guitton
- Jean Hyppolite
- Jean le Rond d'Alembert
- Jean Le Rond d'Alembert
- Jean Leclerc (theologian)
- Jean Meslier
- Jean Nicod
- Jean Nicod Prize
- Jean Philibert Damiron
- Jean Piaget
- Jean Reynaud
- Jean Van Heijenoort
- Jean Wahl
- Jeanne Hersch
- Jedaiah ben Abraham Bedersi
- Jeff Malpas
- Jeff McMahan (philosopher)
- Jeff Monson
- Jeff Paris
- Jeffersonian democracy
- Jeffersonian political philosophy
- Jeffrey Nielsen
- Jen
- Jena romantics
- Jennifer Hornsby
- Jenny Teichman
- Jens Kraft
- Jens Staubrand
- Jeong Do-jeon
- Jeong Yak-yong
- Jeremy Bentham
- Jeremy Butterfield
- Jeremy Waldron
- Jeremy Weate
- Jeroen Groenendijk
- Jerome Frank
- Jerome Frank (lawyer)
- Jerome Ravetz
- Jerrold Katz
- Jerrold Levinson
- Jerry A. Fodor
- Jerry Alan Fodor
- Jerry Farber
- Jerry Fodor
- Jerry Fodor on mental architecture
- Jerry Fodor on mental states
- Jerusalem (Mendelssohn)
- Jerzy Giedymin
- Jerzy Łoś
- Jerzy Perzanowski
- Jerzy Prokopiuk
- Jesaiah Ben-Aharon
- Jesse Mann
- Jesse Prinz
- Jesús Mosterín
- Jesús Padilla Gálvez
- Jewish Bolshevism
- Jewish Communist Labour Party (Poalei Zion)
- Jewish Communist Party (Poalei Zion)
- Jewish Communist Union (Poalei Zion)
- Jewish ethics
- Jewish existentialism
- Jewish Kalam
- Jewish medical ethics
- Jewish philosophy
- Jhana
- Jhāna
- Jia Yi
- Jiao Yu
- Jiddu Krishnamurti
- Jien
- Jim Bell
- Jim Herrick
- Jin Yuelin
- Jindřich Zelený
- Jing Fang
- Jinul
- Jiva Goswami
- Jiyuan Yu
- Jizang
- Jo-ha-kyū
- Joachim Jungius
- Joachim of Fiore
- Joachim of Floris
- Joan Montseny
- Joan Peiró
- Joaquim Carreras I Artau
- Joaquín Ascaso Budria
- Joaquín Maurín
- Joaquín Trincado Mateo
- Jocelin of Soissons
- Jody Azzouni
- Joe Friggieri
- Joel Feinberg
- Joel J. Kupperman
- Joest Lips
- Johan Jakob Borelius
- Johan Robeck
- Johan van Benthem (logician)
- Johan Vilhelm Snellman
- Johann Adam Bergk
- Johann Augustus Eberhard
- Johann Christian Friedrich Holderlin
- Johann Christian Friedrich Hölderlin
- Johann Christian Lossius
- Johann Christoph Friedrich Schiller
- Johann Christoph Friedrich von Schiller
- Johann Christoph Wagenseil
- Johann Eduard Erdmann
- Johann Friedrich Flatt
- Johann Friedrich Herbart
- Johann Georg Hamann
- Johann Georg Heinrich Feder
- Johann Georg Sulzer
- Johann Gottfried Herder
- Johann Gottfried von Herder
- Johann Gottlieb Buhle
- Johann Gottlieb Fichte
- Johann Hast
- Johann Heinrich Abicht
- Johann Heinrich Bisterfeld
- Johann Heinrich Lambert
- Johann Heinrich Loewe
- Johann Heinrich Pabst
- Johann Heinrich Samuel Formey
- Johann Jakob Engel
- Johann Joachim Lange
- Johann Joachim Spalding
- Johann Karl Friedrich Rosenkranz
- Johann Nepomuk Ehrlich
- Johann Nepomuk Oischinger
- Johann Philipp Siebenkees
- Johann Sturm
- Johann Ulrich von Cramer
- Johann Wolfgang von Goethe
- Johannes Agnoli
- Johannes Bredenburg
- Johannes Clauberg
- Johannes de Muris
- Johannes de Raey
- Johannes Jacobus Poortman
- Johannes Kepler
- Johannes Nikolaus Tetens
- Johannes Philoponus
- Johannes Phocylides Holwarda
- Johannes Rehmke
- Johannes Scotus Eriugena
- Johannes Tauler
- John A. Leslie
- John Abercrombie (physician)
- John Alexander Gunn
- John Alexander Smith
- John Amos Comenius
- John Anderson (philosopher)
- John Argyropoulos
- John Armstrong (British writer/philosopher)
- John Arthur Passmore
- John Austin (legal philosopher)
- John B. Watson
- John Balguy
- John Beatty (philosopher)
- John Beverley Robinson (anarchist)
- John Blund
- John Broadus Watson
- John Broome (philosopher)
- John Bulwer
- John Burnheim
- John Callender (psychiatrist)
- John Calvin
- John Campbell (philosopher)
- John Caputo
- John Carew Eccles
- John Case (Aristotelian writer)
- John Clarke (Dean of Salisbury)
- John Cook Wilson
- John Corcoran (logician)
- John Corvino
- John Cowper Powys
- John Creaghe
- John Damascene
- John Daniel Wild
- John de Sècheville
- John Dee
- John Deely
- John Dewey
- John Dewey Society
- John Dumbleton
- John Duns Scotus
- John Dupré
- John E. Hare
- John E. Thomas
- John Earman
- John Elof Boodin
- John Etchemendy
- John F. X. Knasas
- John Finnis
- John Fiske (philosopher)
- John Fitzgerald (poet)
- John Foster (philosopher)
- John Gay
- John Greco (philosopher)
- John Grote
- John Halgren of Abbeville
- John Haugeland
- John Hawthorne
- John Hennon
- John Henry Bernard
- John Henry Mackay
- John Henry Morgan
- John Henry Muirhead
- John Henry Newman
- John Herman Randall Jr.
- John Heydon (astrologer)
- John Hick
- John Hoppus
- John Hospers
- John Italus
- John Jamieson Carswell Smart
- John Joseph Haldane
- John Kekes
- John L. Pollock
- John Lachs
- John Laird (philosopher)
- John Lemmon
- John Lennox
- John Levy (philosopher)
- John Lewis (philosopher)
- John Locke
- John Locke Lectures
- John Lucas
- John Lucas (philosopher)
- John M. Dillon
- John Macmurray
- John Macquarrie
- John Maeda
- John Major (philosopher)
- John Major
- John Martin Fischer
- John Maynard Keynes
- John Mbiti
- John McDowell
- John McMurtry
- John McTaggart Ellis McTaggart
- John Millar (philosopher)
- John Milton
- John Moore (anarchist)
- John N. Deck
- John N. Gray
- John Neihardt
- John Niemeyer Findlay
- John Norris (philosopher)
- John of Damascus
- John of Fidanza
- John of Głogów
- John of Jandun
- John of La Rochelle
- John of Mirecourt
- John of Paris
- John of Saint Thomas
- John of Salisbury
- John of St Thomas
- John of St. Thomas
- John Oswald (activist)
- John P. Anton
- John P. Burgess
- John Pagus
- John Passmore
- John Pecham
- John Peckham
- John Perry (philosopher)
- John Philoponus
- John Poinsot
- John Ponce
- John R. Searle
- John R. Steel
- John Rajchman
- John Ralston Saul
- John Raven
- John Rawls
- John Ray
- John Robert Jones
- John Ruskin
- John Russon
- John Sallis
- John Searle
- John Seiler Brubacher
- John Selden
- John Sergeant (priest)
- John Skorupski
- John Smith (Platonist)
- John Stuart Mackenzie
- John Stuart Mill
- John Stuart Mill Institute
- John Tauler
- John the Grammarian
- John Theophilus Desaguliers
- John Toland
- John Turner (anarchist)
- John Veitch (poet)
- John Venn
- John von Neumann
- John Weckert
- John William Miller
- John Wisdom
- John Witherspoon
- John Worrall (philosopher)
- John Wyclif
- John Wycliffe
- John Zerzan
- John Zube
- Joie de vivre
- Joint method of agreement and difference
- Jon Barwise
- Jon Elster
- Jon Hellesnes
- Jon Mandle
- Jonael Schickler
- Jonathan Barnes
- Jonathan Bennett (philosopher)
- Jonathan Dancy
- Jonathan Edwards (theologian)
- Jonathan Edwards (theology)
- Jonathan Glover
- Jonathan Kvanvig
- Jonathan Lear
- Jonathan Lowe
- Jonathan Rée
- Jonathan Schaffer
- Jonathan Wolff (philosopher)
- Jordi Pigem
- Jorge J. E. Gracia
- José Gaos
- José Gil (philosopher)
- José Guilherme Merquior
- José Ingenieros
- Jose Ortega y Gasset
- José Ortega y Gasset
- José Peirats
- José Vasconcelos
- Josef Hoëné-Wronski
- Josef Peukert
- Josef Pieper
- Josef Simon
- Josefina Ayerza
- Josep Lluís i Facerias
- Joseph-Marie de Maistre
- Joseph Addison
- Joseph Agassi
- Joseph Albo
- Joseph Alois Schumpeter
- Joseph B. Soloveitchik
- Joseph ben Judah of Ceuta
- Joseph Beuys
- Joseph Butler
- Joseph Cropsey
- Joseph D. Sneed
- Joseph de Maistre
- Joseph de Torre
- Joseph Déjacque
- Joseph Dietzgen
- Joseph Franz Molitor
- Joseph Frédéric Bérard
- Joseph Glanvill
- Joseph H. H. Weiler
- Joseph Heath
- Joseph Henry Woodger
- Joseph Hilbe
- Joseph J. Spengler
- Joseph Kaspi
- Joseph Kosuth
- Joseph Leon Blau
- Joseph Maréchal
- Joseph Margolis
- Joseph Marie de Maistre
- Joseph Marie, baron de Gérando
- Joseph Morton Ransdell
- Joseph Owens (Redemptorist)
- Joseph Priestley
- Joseph Priestley and Dissent
- Joseph Raz
- Joseph Rovan
- Joseph Runzo
- Joseph Solomon Delmedigo
- Josephus Flavius Cook
- Joshua Cohen (philosopher)
- Joshua Knobe
- Josiah Royce
- Josiah Warren
- Josip Križan
- Journal for General Philosophy of Science
- Journal of Aesthetics and Art Criticism
- Journal of Applied Non-Classical Logics
- Journal of Applied Philosophy
- Journal of Ayn Rand Studies
- Journal of Business Ethics
- Journal of Consciousness Studies
- Journal of Ethics & Social Philosophy
- Journal of Logic, Language and Information
- Journal of Medical Ethics
- Journal of Moral Philosophy
- Journal of Philosophical Logic
- Journal of Philosophy
- Journal of Research Practice
- Journal of Scottish Philosophy
- Journal of the History of Ideas
- Journal of the History of Philosophy
- Journalism ethics and standards
- Journals of Ayn Rand
- Journals of philosophy
- Józef Emanuel Jankowski
- Józef Gołuchowski
- Józef Kalasanty Szaniawski
- Józef Kremer
- Jozef Maria Bochenski
- Józef Maria Bocheński
- Józef Maria Hoene-Wroński
- Józef Tischner
- Józef Życiński
- Ju
- Juan-David Nasio
- Juan Carrasco (apologist)
- Juan Chi
- Juan David García Bacca
- Juan de Dios Filiberto
- Juan de Mariana
- Juan Donoso Cortés
- Juan García Oliver
- Juan Ginés de Sepúlveda
- Juan Luis Vives
- Juan Luís Vives
- Juan Manuel Burgos
- Juan Manuel Guillén
- Juan Nuño
- Juche
- Judah ben Eliezer ha-Levi Minz
- Judah ben Moses of Rome
- Judah ben Moses Romano
- Judah Ben Samuel of Regensburg
- Judah Ha-Levi
- Judah Halevi
- Judah Leon Abravanel
- Judah Messer Leon
- Judah Messer Leon (15th century)
- Judah Romano
- Judaism
- Judea Pearl
- Judeo-Islamic philosophies (800–1400)
- Judge for Yourselves!
- Judgement
- Judgment
- Judgmental language
- Judith Butler
- Judith Jarvis Thomson
- Judith Miller (philosopher)
- Juha Varto
- Jules Barthélemy-Saint-Hilaire
- Jules Bonnot
- Jules de Gaultier
- Jules Henri Poincaré
- Jules Henri Saiset
- Jules Lequier
- Jules Vuillemin
- Julia Annas
- Julia Kristeva
- Julian Baggini
- Julian Gumperz
- Julian Jaynes
- Julián Marías
- Julian Nida-Rümelin
- Julian Ochorowicz
- Julian Savulescu
- Julian the Apostate
- Julie Rivkin
- Julie, or the New Heloise
- Julien Benda
- Julien Offray de La Mettrie
- Julien Offroy de La Mettrie
- Julius Bahnsen
- Julius Binder
- Julius Caesar Scaliger
- Julius Duboc
- Julius Ebbinghaus
- Julius Evola
- Julius Frank
- Julius Frauenstädt
- Julius Guttmann
- Julius Schaller
- Julius Wilhelm Richard Dedekind
- Jun-Hyeok Kwak
- Jung
- Junge Wilde
- Junius Rusticus
- Junzi
- Juozas Girnius
- Jura Books
- Jura federation
- Jürgen Habermas
- Jürgen Mittelstraß
- Jurisdictional arbitrage
- Jurisprudence
- Jury nullification
- Jus ad bellem
- Jus ad bellum
- Jus in bello
- Jus post bellum
- Jus sanguinis
- Jus soli
- Just-world phenomenon
- Just a Couple of Days
- Just in case
- Just price
- Just war
- Just War
- Just war theory
- Justice
- Justice as fairness
- Justice as Fairness
- Justice as Fairness: A Restatement
- Justification
- Justification by faith
- Justification for the state
- Justified true belief
- Justin Leiber
- Justin Martyr
- Justin Oakley
- Justin Popović
- Justinian I
- Justitium
- Justus Lipsius
K edit
- K'ang Yu-wei
- K'ung Ch'iu
- K'ung Tzu
- K. J. Popma
- K. N. Jayatilleke
- Kabbalah
- Kabouter
- Kafé 44
- Kai Nielsen (philosopher)
- Kaibara Ekken
- Kala
- Kāla
- Kalam
- Kalam cosmological argument
- Kalos kagathos
- Kalpa (aeon)
- Kammaṭṭhāna
- Kanada
- Kancha Ilaiah
- Kang Youwei
- Kantian ethics
- Kantianism
- Kao Tzu
- Karaism
- Karel Kosík
- Karel Lambert
- Karel Verleye
- Karen Hanson
- Karen J. Warren
- Karen Swassjan
- Karl-Otto Apel
- Karl Albert
- Karl Ameriks
- Karl Barth
- Karl Christian Friedrich Krause
- Karl Christian Planck
- Karl Daub
- Karl Emil Maximilian Weber
- Karl Fortlage
- Karl Heinrich Heydenreich
- Karl Heinrich Marx
- Karl Jaspers
- Karl Joel (philosopher)
- Karl Johann Kautsky
- Karl Joseph Hieronymus Windischmann
- Karl Kautsky
- Karl Korsch
- Karl Kraus
- Karl Leonhard Reinhold
- Karl Loewenstein
- Karl Löwith
- Karl Ludwig Michelet
- Karl Mannheim
- Karl Marx
- Karl Menger
- Karl Olivecrona
- Karl Popper
- Karl Rahner
- Karl Raimund Popper
- Karl Renner
- Karl Robert Eduard von Hartmann
- Karl Theodor Bayrhoffer
- Karl Theodor Jaspers
- Karl von Prantl
- Karl Vorländer
- Karl Wilhelm Ferdinand Solger
- Karl Wilhelm Friedrich Schlegel
- Karl Wilhelm Ramler
- Karl, Freiherr von Prel
- Karma
- Karma in Buddhism
- Karma in Jainism
- Karmic
- Karol Libelt
- Karuṇā
- Kaśmir Śaivism
- Kaspar Schmidt
- Katalepsis
- Katarzyna Jaszczolt
- Kate Sharpley Library
- Kate Soper
- Katharsis
- Kathekon
- Kathleen Higgins
- Kautilya
- Kavka's toxin puzzle
- Kazimierz Ajdukiewicz
- Kazimierz Łyszczyński
- Kazimierz Twardowski
- Keiji Nishitani
- Keith Campbell (philosopher)
- Keith DeRose
- Keith Donnellan
- Keith Lehrer
- Keith Ward
- Keith Yandell
- Ken Wilber
- Kenan Malik
- Kendall Walton
- Kenelm Digby
- Kennedy Institute of Ethics
- Kennedy Institute of Ethics Journal
- Kenneth Allen Taylor
- Kenneth Arrow
- Kenneth Clatterbaugh
- Kenneth Rexroth
- Kennisbank Filosofie Nederland
- Kenoma
- Kensho
- Kent Bach
- Kermit Scott
- Kersey Graves
- Kevala Jnana
- Kevin Carson
- Kevin Mulligan
- Key Ideas in Human Thought
- Khaldūn
- Khen Lampert
- Khôra
- Kieron O'Hara
- Killing Time (Paul Feyerabend book)
- Kim Jwa-jin
- Kim Sterelny
- Kin selection
- Kind
- Kindness
- Kinesis
- Kinetic art
- Kinetic theory
- Kingdom of Ends
- Kit Fine
- Kitāb al-Hayawān (Aristotle)
- Kitabatake Chikafusa
- Kitaro Nishida
- Kitsch
- Kiyoshi Miki
- KK thesis
- Klaus Klostermaier
- Klement Jug
- Knight of faith
- Knightly Virtues
- Know thyself
- Knower paradox
- Knowledge
- Knowledge acquisition
- Knowledge and Its Limits
- Knowledge by acquaintance
- Knowledge by description
- Knowledge of Angels
- Knowledge relativity
- Knud Ejler Løgstrup
- Kohlberg's stages of moral development
- Kojin Karatani
- Kokoro
- Kol HaTor
- Konstantin Aksakov
- Konstantin Chkheidze
- Konstantin Kavelin
- Konstantin Leontiev
- Konstantin Pobedonostsev
- Konstantinos Michail
- Konstanty Michalski
- Korean philosophy
- Kosha
- Kostas Axelos
- Kosuke Koyama
- Krastyo Krastev
- Angelika Krebs
- Kripke semantics
- Krishna Chandra Bhattacharya
- Kronstadt rebellion
- Krystyn Lach Szyrma
- Krzysztof Pomian
- Ksenija Atanasijević
- Kūkai
- Kuki Shūzō
- Kumārajīva
- Kumārila Bhaṭṭa
- Kumazawa Banzan
- Kung
- Kung-sun Lung Tzu
- Kung Fu-tzu
- Kuno Fischer
- Kuno Lorenz
- Kunstreligion
- Kuo Hsiang
- Kuroda Kan'ichi
- Kuroda normal form
- Kurt Almqvist
- Kurt Baier
- Kurt Gödel
- Kurt Gödel Society
- Kurt Grelling
- Kurt Lewin
- Kurt Riezler
- Kurt Rudolf Fischer
- Kurt Singer
- Kurt Sternberg
- Kuzari
- Kwame Anthony Appiah
- Kwame Gyekye
- Kwame Nkrumah
- Kwasi Wiredu
- Kwon Geun
- Kyklos
- Kyle Stanford
- Kyoto school
L edit
- L'Abécédaire de Gilles Deleuze
- L'Arco e la Clava
- L'En-Dehors
- L'existentialisme est un humanisme
- L'expérience intérieure
- L. Susan Brown
- L. T. F. Gamut
- L. W. Sumner
- La Part maudite
- La Peau de chagrin
- La Riposte
- Labadie Collection
- Labor aristocracy
- Labor theory of property
- Labour power
- Lacan at the Scene
- Laches (dialogue)
- Lacydes of Cyrene
- Ladislav Klíma
- Lady Masham
- Laelius de Amicitia
- Lai Zhide
- Laïcité
- Lakatos Award
- Lambda calculus
- Lambert of Auxerre
- Lambertus de Monte
- Land ethic
- Landless Peoples Movement
- Landless Workers' Movement
- Language
- Language-game
- Language and thought
- Language equation
- Language game
- Language identification in the limit
- Language of thought
- Language of thought hypothesis
- Language, Truth, and Logic
- Languages of Art
- Lanza del Vasto
- Laozi
- Laplace's demon
- Larry Laudan
- Larry Sanger
- Lars-Henrik Schmidt
- Lars Gule
- Last man
- Lastheneia of Mantinea
- Late modernism
- Lateral thinking
- Latin Conservatism
- Latitudinarianism
- Latitudinarianism (philosophy)
- Lattice theory
- Laughter
- Laughter (Bergson)
- Laura Kipnis
- Laurence BonJour
- Laurence Jonathan Cohen
- Laurence Lampert
- Laurens Perseus Hickok
- Laurent Tailhade
- Law
- Law (principle)
- Law as integrity
- Law in action
- Law of accumulation
- Law of attraction (New Thought)
- Law of contraries
- Law of double negation
- Law of excluded middle
- Law of identity
- Law of large numbers
- Law of nature
- Law of non-contradiction
- Law of succession
- Law of the Infinite Cornucopia
- Law of thought
- Law of trichotomy
- Law of Unintended Consequences
- Law of value
- Law, Legislation and Liberty
- Lawrence C. Becker
- Lawrence Ferlinghetti
- Lawrence Jarach
- Lawrence Kohlberg
- Lawrence Sklar
- Lawrence Stepelevich
- Lawrence Storione
- Laws (dialogue)
- Laws of Form
- Laws of nature
- Laws of thought
- Lazarus Geiger
- Laziness
- Lazy argument
- Lazy Reason
- Le Ton beau de Marot
- Leadership
- League of peace
- Leap of faith
- Learned Hand
- Learning
- Least squares method
- Lebensphilosophie
- Lebenswelt
- Lectures on Aesthetics
- Lectures on the Philosophy of Religion
- Lectures on the History of Philosophy
- Lectures on the Philosophy of History
- Lee Carroll
- Leemon McHenry
- Left communism
- Left quotient
- Left recursion
- Left SR uprising
- Legal code (municipal)
- Legal concept
- Legal death
- Legal Education and the Reproduction of Hierarchy
- Legal ethics
- Legal formalism
- Legal interpretation
- Legal liability
- Legal malpractice
- Legal moralism
- Legal naturalism
- Legal origins theory
- Legal philosophy
- Legal positivism
- Legal principle
- Legal realism
- Legal right
- Legal rights
- Legal science
- Legalism
- Legalism (Chinese philosophy)
- Legalism (Western philosophy)
- Legisign
- Legitimacy (political)
- Legitimists (disambiguation)
- Leibniz's gap
- Leibniz's law
- Leibniz–Clarke correspondence
- Lelio Basso
- Lemma (logic)
- Lemma (mathematics)
- Leninism
- Lennart Åqvist
- Leo Apostel
- Léo Ferré
- Leo Harrington
- Leo Kofler
- Leo Kuper
- Leo Mikhailovich Lopatin
- Leo Strauss
- Leo the Mathematician
- Leo Tolstoy
- Leo Tolstoy bibliography
- Leon Battista Alberti
- Léon Brunschvicg
- Leon Chwistek
- Leon Czolgosz
- Léon Dumont
- Leon Henkin
- Léon Ollé-Laprune
- Leon Petrazycki
- Leon Petrażycki
- Leon Trotsky
- Leonard B. Meyer
- Leonard Borgzinner
- Leonard Harris (philosopher)
- Leonard Linsky
- Leonard Nelson
- Leonard Peikoff
- Leonard Read
- Leonard Trelawny Hobhouse
- Leonardo da Vinci
- Leonardo Garzoni
- Leonardo Moledo
- Leonardo Polo
- Léonce Crenier
- Leonid Grinin
- Leonid Pitamic
- Leonid Stolovich
- Leonidas Donskis
- Leonteus of Lampsacus
- Leontion
- Leopold Flam
- Leopold Kronecker
- Leopold Löwenheim
- Leopoldo Zea Aguilar
- Les Automatistes
- Les jeux sont faits
- Les Nabis
- Les Temps modernes
- Lesbian feminism
- Leslie Armour
- Leslie Green (philosopher)
- Leslie Stephen
- Letter to a Christian Nation
- Letters of Ayn Rand
- Letters of Insurgents
- Letters to a Philosophical Unbeliever
- Letters to Malcolm: Chiefly on Prayer
- Lettre sur les aveugles à l'usage de ceux qui voient
- Lettrism
- Leucippus
- Lev Chernyi
- Lev Semenovich Vygotskii
- Lev Semënovich Vygotskii
- Lev Semenovich Vygotsky
- Lev Shestov
- Lev Vygotskii
- Lev Vygotsky
- Level
- Levels of adequacy
- Levels of Knowing and Existence
- Levi ben Gershom
- Levi Hedge
- Leviathan (book)
- Leviathan and the Air-Pump
- Lew Rockwell
- Lewis's trilemma
- Lewis Call
- Lewis Carroll
- Lewis Gordon
- Lewis Mumford
- Lewis White Beck
- LewRockwell.com
- Lex talionis
- Lex, Rex
- Lexical ambiguity
- Lexical definition
- Lexicology
- Lexicon
- Lexington Avenue bombing
- Lexis (Aristotle)
- LF (logical framework)
- LGBT topics and Confucianism
- Li
- Li (Confucian)
- Li (Neo-Confucianism)
- Li Ao
- Li Ao (philosopher)
- Li Chi
- Li Kui (legalist)
- Li Shenzhi
- Li Shicen
- Li Si
- Li Zhi (philosopher)
- Liang Ch'i-ch'ao
- Liang Qichao
- Liang Shuming
- Liar paradox
- Liber de Causis
- Liberal arts
- Liberal conservatism
- Liberal eugenics
- Liberal movements within Islam
- Liberal nationalism
- Liberal paradox
- Liberalism
- Liberalism in Canada
- Liberalism worldwide
- Liberation theology
- Libero International
- Libertarian League
- Libertarian Marxism
- Libertarian municipalism
- Libertarian perspectives on revolution
- Libertarian socialism
- Libertarian theories of law
- Libertarian transhumanism
- Libertarian Workers' Group
- Libertarianism
- Libertarianism (metaphysics)
- Libertarianism (philosophy)
- Libertarianism (politics)
- Libertarias
- Liberté, égalité, fraternité
- Libertinism
- Liberty
- Liberty right
- Liberum arbitrium
- Library of Friedrich Nietzsche
- Library of Living Philosophers
- Lie
- Lie Yukou
- Liezi
- Life
- Life-world
- Life and death
- Life and Labor Commune
- Life course theory
- Life imitating art
- Life is a Dream
- Life Is Real Only Then, When 'I Am'
- Life of Apollonius of Tyana
- Life of Jesus (Hegel)
- Life of Pi
- Life stance
- Lifeboat ethics
- Lifestyle (sociology)
- Lifestyle anarchism
- Lifeworld
- Light of nature
- Lightness (philosophy)
- Likkutei Sichos
- Lila: An Inquiry into Morals
- Lilian Wolfe
- Lilli Alanen
- Limbo
- Limit-experience
- Limited Inc
- Lin-chi
- Lin Yutang
- Linacre Quarterly
- Linda Martín Alcoff
- Linda Trinkaus Zagzebski
- Lindley Darden
- Line of Beauty
- Line of flight
- Lineage (Buddhism)
- Linear grammar
- Linear logic
- Linear order
- Linguistic analysis
- Linguistic competence
- Linguistic determinism
- Linguistic discrimination
- Linguistic performance
- Linguistic philosophy
- Linguistic relativity
- Linguistic semantics
- Linguistic turn
- Linguistics and Philosophy
- Linji Yixuan
- List of aestheticians
- List of African American philosophers
- List of American philosophers
- List of anarchist books
- List of anarchist communities
- List of anarchist movements by region
- List of anarchist musicians
- List of anarchist organizations
- List of anarchist periodicals
- List of anarchist poets
- List of anarcho-punk bands
- List of ancient Greek philosophers
- List of ancient Platonists
- List of Argentine philosophers
- List of Armenian scientists and philosophers
- List of books about philosophy
- List of British philosophers
- List of Canadian philosophers
- List of Catholic philosophers and theologians
- List of Chinese philosophers
- List of cognitive biases
- List of communist ideologies
- List of communist parties
- List of Confucianists
- List of contributors to Marxist theory
- List of critical theorists
- List of culturally linked qualities of music
- List of current communist states
- List of Cynic philosophers
- List of environmental philosophers
- List of Epicurean philosophers
- List of epistemologists
- List of ethicists
- List of ethics topics
- List of existentialists
- List of fallacies
- List of female mystics
- List of female philosophers
- List of fictional anarchists
- List of French artistic movements
- List of French philosophers
- List of German-language philosophers
- List of humanism topics
- List of humanists
- List of Iranian philosophers
- List of Italian philosophers
- List of Jewish American philosophers
- List of Jewish anarchists
- List of Jewish scientists and philosophers
- List of Korean philosophers
- List of Latin phrases (A–E)
- List of logicians
- List of metaphysicians
- List of Muslim philosophers
- List of Nazi ideologues
- List of new religious movements
- List of nontheists (philosophy)
- List of Pakistani scientists and philosophers
- List of paradoxes
- List of philosophers
- List of philosophers (A–C)
- List of philosophers (D–H)
- List of philosophers (I–Q)
- List of philosophers (R–Z)
- List of philosophers born in the centuries BC
- List of philosophers born in the eighteenth century
- List of philosophers born in the eleventh through fourteenth centuries
- List of philosophers born in the fifteenth and sixteenth centuries
- List of philosophers born in the first through tenth centuries
- List of philosophers born in the nineteenth century
- List of philosophers born in the seventeenth century
- List of philosophers born in the twentieth century
- List of philosophers of language
- List of philosophers of mind
- List of philosophers of science
- List of philosophical topics
- List of philosophies
- List of philosophy anniversaries
- List of philosophy journals
- List of political philosophers
- List of postmodern critics
- List of rasa'il in the Encyclopedia of the Brethren of Purity
- List of Renaissance commentators on Aristotle
- List of Renaissance humanists
- List of Romanian philosophers
- List of rules of inference
- List of Russian anarchists
- List of Russian philosophers
- List of scholastic philosophers
- List of schools of philosophy
- List of Slovenian philosophers
- List of social and political philosophers
- List of speakers in Plato's dialogues
- List of Stoic philosophers
- List of teachers of Advaita Vedanta
- List of thinkers influenced by deconstruction
- List of thought processes
- List of topics in philosophical aesthetics
- List of topics in sexual ethics
- List of Turkish philosophers
- List of Turkish philosophers and scientists
- List of utilitarians
- List of works about Friedrich Nietzsche
- List of works by Joseph Priestley
- List of works by Lucian
- List of works in critical theory
- List of writers influenced by Aristotle
- List of years in philosophy
- Listen, Anarchist!
- Lists of anarchism topics
- Lists of philosophers
- Lists of philosophy topics
- Literal meaning
- Literary criticism
- Literary merit
- Literary theory
- Littoral art
- Liu Boming (philosopher)
- Liu Bowen
- Liu Shaoqi
- Liu Shifu
- Liu Xie
- Lived body
- Lives and Opinions of Eminent Philosophers
- Living Ethics
- Living Garment of God
- Living High and Letting Die
- Living Marxism
- Living My Life
- Ljubomir Cuculovski
- Loaded question
- Löb's theorem
- Local skepticism
- Localism (politics)
- Locke's Socks
- Locutionary act
- Locutions
- Logic
- Logic alphabet
- Logic as a Positive Science
- Logic diagram
- Logic in China
- Logic in computer science
- Logic in Islamic philosophy
- Logic Made Easy
- Logic of information
- Logic redundancy
- Logic Spectacles
- Logica nova
- Logica Universalis
- Logical argument
- Logical atomism
- Logical biconditional
- Logical certainty
- Logical connective
- Logical consequence
- Logical constant
- Logical constants
- Logical disjunction
- Logical empiricism
- Logical equality
- Logical equivalence
- Logical extreme
- Logical form
- Logical graph
- Logical harmony
- Logical holism
- Logical implication
- Logical independence
- Logical matrix
- Logical necessity
- Logical NOR
- Logical paradox
- Logical positivism
- Logical Positivism
- Logical possibility
- Logical predicate
- Logical quality
- Logical reasoning
- Logical symbols
- Logical syntax
- Logical system
- Logical theory
- Logical truth
- Logicism
- Logicomix
- Logics
- Logocentric
- Logocentrism
- Logoi
- Logorrhoea (linguistics)
- Logos
- Logos: A Journal of Modern Society and Culture
- Logosophy
- Lon L. Fuller
- London Action Resource Centre
- London Autonomists
- London Positivist Society
- Lonergan Institute
- Longchenpa
- Longinus
- Longinus (literature)
- Looking Backward
- Lookism
- Lopamudra
- Lord Kames
- Lord Monboddo
- Lord Shaftesbury
- Lord Shang
- Loren Eiseley
- Loren Lomasky
- Lorenz Oken
- Lorenzo Magalotti
- Lorenzo Magnani
- Lorenzo Peña
- Lorenzo Valla
- Los Solidarios
- Loss aversion
- Lottery of birth
- Lottery paradox
- Lou Marinoff
- Louis-Françisque Lélut
- Louis Althusser
- Louis Billot
- Louis Claude de Saint-Martin
- Louis Couturat
- Louis Dupré
- Louis Eugène Marie Bautain
- Louis Gabriel Ambroise de Bonald
- Louis H. Mackey
- Louis Lavelle
- Louis Narens
- Louis Pojman
- Louis Rougier
- Louise Berger
- Louise Bryant
- Louise Michel
- Love
- Lovefeast
- Lowenfield v. Phelps
- Löwenheim–Skolem theorem
- Loyalty
- Lu-shih ch'un-ch'iu
- Lü-shih ch'un-ch'iu
- Lu Ban
- Lu Hsiang-shan
- Lu Jiuyuan
- Lü Liuliang
- Lu Xiangshan
- Luc Bovens
- Luc de Clapiers, marquis de Vauvenargues
- Luc Ferry
- Luce Irigaray
- Lucía Sánchez Saornil
- Lucian
- Lucian Blaga
- Lucian Floridi
- Lucian of Samosata
- Luciano Floridi
- Lucien Goldmann
- Lucien Lévy-Bruhl
- Lucifer the Lightbearer
- Lucilio Vanini
- Lucio Colletti
- Lucio Urtubia
- Lucius Annaeus Cornutus
- Lucius Annaeus Seneca
- Luck
- Lucretius
- Lucy Parsons
- Luddite
- Ludic
- Ludic fallacy
- Ludovico Geymonat
- Ludwig Feuerbach
- Ludwig Babenstuber
- Ludwig Boltzmann
- Ludwig Büchner
- Ludwig Klages
- Ludwig Landgrebe
- Ludwig Marcuse
- Ludwig Tieck
- Ludwig von Mises
- Ludwig Wittgenstein
- Ludwik Fleck
- Luigi Fabbri
- Luigi Ferri
- Luigi Galleani
- Luigi Guido Grandi
- Luigi Lucheni
- Luigi Pareyson
- Luis de Molina
- Luís Filipe Teixeira
- Luisa Capetillo
- Luitzen Egbertus Jan Brouwer
- Luminism (American art style)
- Lun Yu
- Lunheng
- Lunyu
- Luo Rufang
- Lương Kim Định
- Lüshi Chunqiu
- Lust
- Lutheran scholasticism
- Lutz Wingert
- Luxemburgism
- Lwów–Warsaw school
- Lyceum
- Lyceum (classical)
- Lyco of Iasos
- Lyco of Troas
- Lycophron (sophist)
- Lying
- Lynn Pasquerella
- Lynne Rudder Baker
- Lyrical abstraction
- Lysander Spooner
- Lysis (dialogue)
- Lysis of Taras
- Lyubomir Ivanov (explorer)
- Lyubov Axelrod
M edit
- M. Nasroen
- Ma Rong
- Mach's principle
- Machiavellianism
- Macrocosm
- Macrocosm and microcosm
- Mad pain and Martian pain
- Madame de Stael
- Madame de Staël
- Madeleine Doran
- Madhava
- Madhusūdana Sarasvatī
- Madhvacharya
- Madhwas
- Madhyamaka
- Madhyamika
- Mādhyamika
- Madhyamika Buddhism
- Mādhyamika Buddhism
- Magdalena Środa
- Magical thinking
- Magna Moralia
- Magnanimity
- Magnificence (History of ideas)
- Mahabharata
- Mahābhūta
- Mahamudra
- Mahasi Sayadaw
- Mahatma Gandhi
- Mahavira
- Mahayana
- Mahayana Buddhism
- Mahmoud Khatami
- Maieutics
- Maimonides
- Maine de Biran
- Maitreya-nātha
- Maitreyi
- Major term
- Makapansgat pebble
- Makhnovshchina
- Maksim Rayevsky
- Malakia
- Malcolm Knox
- Malinda Cramer
- Malthusian catastrophe
- Malthusian equilibrium
- Man's Fate
- Man's inhumanity to man
- Man a Machine
- Man and Society
- Man and Technics
- Manas-vijnana
- Manchester Literary and Philosophical Society
- Mandala
- Maṇḍana Miśra
- Mandate of Heaven
- Mandated choice
- Mandeville's paradox
- Manfred Frank
- Mani
- Mani Kaul
- Manichaeism
- Manicheanism
- Manifesto of the Sixteen
- Manifold
- Manlio Sgalambro
- Mannerism
- Mantra
- Manuchehr Jamali
- Manuel Buenacasa Tomeo
- Manuel Chrysoloras
- Manuel de Landa
- Manuel Lassala
- Manuel Sacristán
- Many-minds interpretation
- Many-valued logic
- Many-valued logics
- Many-worlds interpretation of quantum mechanics
- Manzoor Ahmad
- Mao Zedong
- Maoism
- Map–territory relation
- Mappō
- Marburg School
- Marc-Alain Ouaknin
- Marc de Vries
- Marc Jean-Bernard
- Marc Sautet
- Marcantonio Genua
- Marcel Conche
- Marcel Gauchet
- Marcello Pera
- Marcelo Dascal
- Marcelo Sánchez Sorondo
- Marco Camenisch
- Marcus Aurelius
- Marcus Favonius
- Marcus George Singer
- Marcus Minucius Felix
- Marcus Musurus
- Marek Siemek
- Margaret Canovan
- Margaret Cavendish, Duchess of Newcastle-upon-Tyne
- Margaret Elizabeth Egan
- Margaret Gilbert
- Margaret Somerville
- Margareta i Kumla
- Marginal utility
- Marginalization
- Maria Gaetana Agnesi
- Maria Montessori
- Maria Nikiforova
- Maria Occhipinti
- Maria Ossowska
- María Zambrano
- Maria: or, The Wrongs of Woman
- Marian Hillar
- Marian Jaworski
- Marian Massonius
- Marian Zdziechowski
- Marianna Marquesa Florenzi
- Mariano Artigas
- Marie-Louise Berneri
- Marie Equi
- Marilena Chaui
- Marilyn Frye
- Marilyn McCord Adams
- Marin Mersenne
- Marinus of Neapolis
- Mario Bettinus
- Mario Bunge
- Mario De Caro
- Mario Kopić
- Mario Perniola
- Marius the Epicurean
- Marius Victorinus
- Marjorie Grene
- Mark Addis
- Mark Alan Walker
- Mark C. Taylor
- Mark Cherry
- Mark de Bretton Platts
- Mark Johnson (philosopher)
- Mark Kingwell
- Mark Kuczewski
- Mark Lance
- Mark Olssen
- Mark Philp
- Mark Sacks
- Mark Sainsbury (philosopher)
- Mark Sainsbury (philosopher)
- Mark Steiner
- Mark Vernon
- Mark Wrathall
- Market populism
- Market socialism
- Marketing ethics
- Markov process
- Markus Herz
- Marlène Zarader
- Marpa Lotsawa
- Marquis de Condorcet
- Marriage
- Marshall Berman
- Marshall McLuhan
- Marsiglio of Padua
- Marsilio dei Mainardine
- Marsilio Ficino
- Marsilius of Inghen
- Marsilius of Padua
- Marta Petreu
- Martha C. Nussbaum
- Martha Craven Nussbaum
- Martha Klein
- Martha Nussbaum
- Martial Guéroult
- Martian scientist
- Martin A. Hainz
- Martin Buber
- Martin Davis
- Martin Deutinger
- Martin Gardner
- Martin Heidegger
- Martin Hollis (philosopher)
- Martin Knutzen
- Martin Kusch
- Martin Löb
- Martin Luther
- Martin Luther King Jr.
- Martin Stokhof
- Martin van Hees
- Martine Batchelor
- Martinus Smiglecius
- Martyn Evans (academic)
- Marvin Farber
- Marvin Minsky
- Marx's Historical Stages
- Marx's theory of alienation
- Marx's theory of history
- Marx's theory of human nature
- Marx W. Wartofsky
- Marx’s method
- Marxism
- Marxism–Leninism
- Marxist aesthetics
- Marxist feminism
- Marxist humanism
- Marxist philosophy
- Marxist philosophy of nature
- Marxist sociology
- Mary's room
- Mary Anne Atwood
- Mary Anne Warren
- Mary Astell
- Mary Daly
- Mary Hesse
- Mary Louise Pratt
- Mary Midgley
- Mary Tiles
- Mary Warnock
- Mary Warnock, Baroness Warnock
- Mary Whiton Calkins
- Mary Wollstonecraft
- Masakazu Nakai
- Masao Abe
- Masculism
- Masked-man fallacy
- Mass noun
- Massimo Cacciari
- Massimo Pigliucci
- Master-slave dialectic
- Master-slave morality
- Master argument
- Master suppression techniques
- Mateo Aimerich
- Material conditional
- Material equivalence
- Material good
- Material implication
- Material monism
- Material nonimplication
- Material substratum
- Materialism
- Materialism and Empirio-criticism
- Mateu Morral
- Mathematical analysis
- Mathematical beauty
- Mathematical constructivism
- Mathematical fallacy
- Mathematical function
- Mathematical induction
- Mathematical intuitionism
- Mathematical logic
- Mathematical Proceedings of the Cambridge Philosophical Society
- Mathematical space
- Mathematical universe hypothesis
- Mathematics and art
- Matheolus Perusinus
- Mathesis universalis
- Matrix grammar
- Matrix mechanics
- Matteo Campani-Alimenis
- Matteotti Battalion
- Matter
- Matter (philosophy)
- Matter and Memory
- Matthew Ferchi
- Matthew Foreman
- Matthew Lipman
- Matthew of Aquasparta
- Matthew Stewart (philosopher)
- Matthew Tindal
- Matti Häyry
- Maurice Blanchot
- Maurice Blondel
- Maurice Brinton
- Maurice Cranston
- Maurice De Wulf
- Maurice Halbwachs
- Maurice Merleau-Ponty
- Maurice Pradines
- Mauricio Suarez
- Max Baginski
- Max Bense
- Max Black
- Max Dessoir
- Max Hödel
- Max Horkheimer
- Max More
- Max Müller
- Max Müller (Catholic intellectual)
- Max Planck
- Max Scheler
- Max Scheler's Concept of Ressentiment
- Max Stirner
- Max Weber
- Maxence Caron
- Maxim (philosophy)
- Maximal consistent set
- Maximalism
- Maximilien Luce
- Maximinus (Praetorian Prefect)
- Maximus of Ephesus
- Maximus of Tyre
- Maximus the Confessor
- Maxine Greene
- Maxwell's demon
- May 68, Philosophy is in the Street!
- Maya (illusion)
- Maya Keyes
- Mayatita
- Mazdak
- Mazen Asfour
- Mazu Daoyi
- Meaning
- Meaning (existential)
- Meaning (linguistics)
- Meaning (non-linguistic)
- Meaning (philosophy of language)
- Meaning (semiotics)
- Meaning of life
- Meaning of life (philosophy)
- Meaning postulate
- Meaningless statement
- Means to an end
- Measurement
- Measurement in quantum mechanics
- Mechanics
- Mechanics (Aristotle)
- Mechanism (philosophy)
- Media accountability
- Media ecology
- Media ethics
- Media transparency
- Mediated reference theory
- Mediation (Marxist theory and media studies)
- Medical error
- Medical ethics
- Medical gaze
- Medical torture
- Medical waste
- Medieval logic
- Medieval philosophy
- Medieval science
- Mediocrity principle
- Meditations
- Meditations on First Philosophy
- Meditations on the Peaks
- Meera Nanda
- Megalothymia and Isothymia
- Megarian school
- Megarians
- Mehdi Belhaj Kacem
- Mehmet Aydın
- Meiklejohnian absolutism
- Meinong's jungle
- Meister Eckhart
- Mel Bradford
- Melbourne School of Continental Philosophy
- Melchiorre Gioia
- Melchor Rodríguez García
- Meleager of Gadara
- Meletus
- Meliorism
- Melissus
- Melissus of Samos
- Melville Y. Stewart
- Meme
- Meme pool
- Memeplex
- Memetics
- Memoirs Illustrating the History of Jacobinism
- Memoirs of Emma Courtney
- Memorabilia (Xenophon)
- Memory
- Men's rights
- Men Among the Ruins
- Mencius
- Mencius (book)
- Mendelian genetics
- Menedemus
- Menedemus of Pyrrha
- Menedemus the Cynic
- Menexenus (dialogue)
- Meng-tzu
- Meng K'o
- Mengzi
- Menippus
- Meno
- Mens rea
- Mental body
- Mental causation
- Mental event
- Mental functions
- Mental illness
- Mental image
- Mental imagery
- Mental process
- Mental property
- Mental representation
- Mental space
- Mental state
- Mental substance
- Mental world
- Mentalese
- Mentalism (philosophy)
- Mentality
- Menyhért Palágyi
- Meontology
- Merab Mamardashvili
- Mercy
- Mere addition paradox
- Mereological essentialism
- Mereological nihilism
- Mereology
- Mereotopology
- Merit
- Merit (Buddhism)
- Meritarian
- Meritocracy
- Merton School
- Meshico
- Mesillat Yesharim
- Message from the East
- Messianic democracy
- Messianism
- Messius Phoebus Severus
- Meta
- Meta-discussion
- Meta-emotion
- Meta-epistemology
- Meta-ethics
- Meta-ontology
- Meta-philosophy
- Meta-rights
- Metadiscourse
- Metaethics
- Metaknowledge
- Metakosmia
- Metal Gear Solid 3: Snake Eater
- Metalanguage
- Metalogic
- Metamagical Themas
- Metamathematics
- Metameme
- Metametaphysics
- Metaphilosophy
- Metaphor
- Metaphor in philosophy
- Metaphor of the Sun
- Metaphysical art
- Metaphysical Foundations of Natural Science
- Metaphysical naturalism
- Metaphysical necessity
- Metaphysical nihilism
- Metaphysical objectivism
- Metaphysical poets
- Metaphysical realism
- Metaphysical Society
- Metaphysical solipsism
- Metaphysical subjectivism
- Metaphysics
- Metaphysics (Aristotle)
- Metaphysics of Morals
- Metaphysics of presence
- Metaphysics of quality
- Metaphysics of War
- Metarealism
- Metasyntax
- Metatheorem
- Metatheory
- Metaxy
- Metempsychosis
- Meteorology (Aristotle)
- Method of agreement
- Method of concomitant variations
- Method of residues
- Methodic doubt
- Methodical culturalism
- Methodios Anthrakites
- Methodism
- Methodism (philosophy)
- Methodological individualism
- Methodological naturalism
- Methodological relativism
- Methodological skepticism
- Methodological solipsism
- Methodology
- Methods of obtaining knowledge
- Metrocles
- Metrodorus of Athens
- Metrodorus of Chios
- Metrodorus of Cos
- Metrodorus of Lampsacus (the elder)
- Metrodorus of Lampsacus (the younger)
- Metrodorus of Stratonicea
- Mexican Liberal Party
- Michael A. E. Dummett
- Michael A. Smith (philosopher)
- Michael Anthony Eardley Dummett
- Michael Bratman
- Michael Davis (philosopher)
- Michael Devitt
- Michael Dummett
- Michael E. Rosen
- Michael E. Zimmerman (philosopher)
- Michael Ferejohn
- Michael Foster (philosopher)
- Michael Fourman
- Michael Frede
- Michael Friedman (philosopher)
- Michael Gelven
- Michael Gottlieb Birckner
- Michael Hardt
- Michael Hissmann
- Michael Ignatieff
- Michael Joseph Oakeshott
- Michael Levin (philosopher)
- Michael Lockwood (philosopher)
- Michael Lynch (philosopher)
- Michael Martin (philosopher)
- Michael Matteson
- Michael Neumann
- Michael Novak
- Michael O. Rabin
- Michael Oakeshott
- Michael of Ephesus
- Michael of Massa
- Michael Otsuka
- Michael Polanyi
- Michael Psellos
- Michael R. Ayers
- Michael Ruse
- Michael Sandel
- Michael Schmidt-Salomon
- Michael Scriven
- Michael Sprinker
- Michael Talbot (author)
- Michael Tye (philosopher)
- Michael Vavrus
- Michael Walzer
- Michael Williams (philosopher)
- Michał Falkener
- Michał Heller
- Michał Sędziwój
- Michał Twaróg of Bystrzyków
- Michał Wiszniewski
- Michel Bitbol
- Michel de Certeau
- Michel de Montaigne
- Michel Eyquem de Montaigne
- Michel Fattal
- Michel Foucault
- Michel Foucault bibliography
- Michel Henry
- Michel Onfray
- Michel Pêcheux
- Michel Serres
- Michel Seymour
- Michelangelo Fardella
- Michele Cianciulli
- Michele Le Doeuff
- Michèle Le Doeuff
- Michèle Le Dœuff
- Microcosm
- Middle knowledge
- Middle Platonism
- Middle term
- Middle Way
- Midrash
- Midwest Studies in Philosophy
- Might Is Right
- Might makes right
- Miguel de Unamuno
- Miguel de Unamuno y Jugo
- Miguel García (anarchist)
- Miguel García Vivancos
- Miguel Larreynaga
- Miguel Reale
- Miguel Serrano
- Mihailo Đurić
- Mihailo Marković
- Mikael Stenmark
- Mike Lesser
- Mike Sandbothe
- Mikel Dufrenne
- Mikelis Avlichos
- Mikhail Bakhtin
- Mikhail Bakunin
- Mikhail Lifshitz
- Mikhail Ovsyannikov
- Mikhail Shcherbatov
- Miki Kiyoshi
- Mikyo Dorje
- Mikyö Dorje
- Milan Damnjanović (philosopher)
- Milan Kangrga
- Milan Komar
- Milan Vidmar
- Milarepa
- Milesian school
- Milgram experiment
- Military medical ethics
- Mill's methods
- Mill's Methods
- Millan Puelles
- Milly Witkop
- Mimamsa
- Mimāṃsā
- Mimesis
- Minarchism
- Mind
- Mind's eye
- Mind-body problem
- Mind–body dichotomy
- Mind & Language
- Mind (journal)
- Mind children
- Mind extension
- Mind over matter
- Minds, Machines and Gödel
- Mindset
- Mindstream
- Ming Dynasty
- Mingei
- Minima Moralia
- Minimal decency
- Minimalism
- Minimax
- Minimax strategy
- Minimum Intelligent Signal Test
- Minimum programme
- Minkowski space-time
- Minor premise
- Minor term
- Minority (philosophy)
- Minors and abortion
- Minos (dialogue)
- Mir Damad
- Mir Fendereski
- Miracle
- Miracle of the roses
- Miran Božovič
- Miranda Fricker
- Mircea Eliade
- Mircea Eliade bibliography
- Mirosław Dzielski
- Mirror stage
- Mirror test
- Misanthropy
- Misinformation effect
- Miskawayh
- Misleading vividness
- Misology
- Misopogon
- Misotheism
- Mitchell Miller (philosopher)
- Mitchell Thomashow
- Miura Baien
- Miyabi
- Mladen Dolar
- Mnason of Phocis
- Mnesarchus of Athens
- Mo Ti
- Mo Tzu
- Mochus
- Modal fictionalism
- Modal logic
- Modal operator
- Modal property
- Modal realism
- Modalities (sociology)
- Modality
- Mode of production
- Model (abstract)
- Model theory
- Models of scientific inquiry
- Moderate objectivism
- Moderate realism
- Moderation
- Moderatus of Gades
- Modern liberalism in the United States
- Modern Moral Philosophy
- Modern philosophy
- Modern Physics and Ancient Faith
- Modern School (United States)
- Modernism
- Modernity
- Modesty
- Modistae
- Modjtaba Sadria
- Modor
- Modular constructivism
- Modularity
- Modularity of mind
- Modus ponendo tollens
- Modus ponens
- Modus tollendo ponens
- Modus tollens
- Mohamed Osman Elkhosht
- Mohammad Baqir al-Sadr
- Mohammad Ibn Abd-al-Haq Ibn Sab’in
- Mohammad Taghi Jafari
- Mohammed Abed al-Jabri
- Mohammed Aziz Lahbabi
- Mohammed Chaouki Zine
- Mohammed Sabila
- Mohandas Karamchand Gandhi
- Mohism
- Mohist philosophy
- Mohist School
- Moishe Tokar
- Mojżesz Presburger
- Moksa (Jainism)
- Moksha
- Molecular biology
- Molinism
- Molyneux's Problem
- Molyneux problem
- Molyneux question
- Monad
- Monad (Greek philosophy)
- Monadic predicate calculus
- Monadology
- Monarchomachs
- Monetary reform
- Monimus
- Monism
- Monistic idealism
- Monopoly on violence
- Monotheism
- Monotonic
- Monroe Beardsley
- Montague grammar
- Montanism
- Montanus
- Monte Carlo fallacy
- Montesquieu
- Monty Hall problem
- Mood (psychology)
- Moore's paradox
- Moore reduction procedure
- Moral
- Moral absolutism
- Moral agency
- Moral agent
- Moral agents
- Moral certainty
- Moral character
- Moral community
- Moral core
- Moral development
- Moral dilemma
- Moral dilemmas
- Moral economy
- Moral education
- Moral epistemology
- Moral equivalence
- Moral evil
- Moral example
- Moral hazard
- Moral hierarchy
- Moral high ground
- Moral imperative
- Moral judgment
- Moral law
- Moral luck
- Moral motivation
- Moral nihilism
- Moral non-naturalism
- Moral objectivism
- Moral obligation
- Moral panic
- Moral particularism
- Moral perception
- Moral philosophy
- Moral pluralism
- Moral psychology
- Moral rationalism
- Moral realism
- Moral reasoning
- Moral relativism
- Moral responsibility
- Moral scepticism
- Moral sense
- Moral sense theory
- Moral skepticism
- Moral status of animals in the ancient world
- Moral subjectivism
- Moral syncretism
- Moral treatment
- Moral universalism
- Moralism
- Moralistic fallacy
- Morality
- Morality play
- Morality without religion
- Moralium dogma philosophorum
- Morals
- Morals by Agreement
- Moravec's paradox
- Mordecai Kaplan
- Mores
- Moritz Carrière
- Moritz Geiger
- Moritz Lazarus
- Moritz Schlick
- Morphological freedom
- Morris Weitz
- Mortalism
- Morteza Motahhari
- Mortimer J. Adler
- Morton White
- Mos maiorum
- Moscow Conceptualists
- Moses Ben Jacob Ibn Ezra
- Moses ben Joshua
- Moses ben Maimon
- Moses ben Nahman
- Moses Hess
- Moses ibn Ezra
- Moses Ibn Ezra
- Moses Maimonides
- Moses Mendelssohn
- Moses Nahmanides
- Moses Schönfinkel
- Moshé Machover
- Mostafa Malekian
- Motion (physics)
- Motivation
- Motivational internalism
- Motoori Norinaga
- Mottainai
- Mou Zongsan
- Movement Against the Monarchy
- Movement of Animals
- Moving the goalpost
- Mozi
- Mr. Palomar
- Mu'ayyad fi'l-Din al-Shirazi
- Mu'tazila
- Muhammad 'Abduh
- Muhammad Abduh
- Muhammad Ali Siddiqui
- Muhammad Baqir Mir Damad
- Muhammad Husayn Tabatabaei
- Muhammad ibn Muhammad Tabrizi
- Muhammad ibn Zakariya al-Razi
- Muhammad Iqbal
- Muhammed Hamdi Yazır
- Muhsen Feyz Kashani
- Muirhead Library of Philosophy
- Mujeres Libres
- Mujo
- Mujō
- Mūlamadhyamakakārikā
- Mulla Hadi Sabzevari
- Mulla Sadra
- Multi-criteria decision analysis
- Multi-valued logic
- Multicultural particularism
- Multiculturalism
- Multimodal logic
- Multiperspectivalism
- Multiple-conclusion logic
- Multiple discovery
- Multiple Drafts Model
- Multiple realizability
- Multiple time dimensions
- Multiplicity (philosophy)
- Multitude
- Multitudes (journal)
- Multiverse
- Mumbo Jumbo (phrase)
- Münchhausen trilemma
- Mundane reason
- Munich phenomenology
- Muro Kyūsō
- Murray Bookchin
- Murray Clarke
- Murray Rothbard
- Musa al-Sadr
- Musa Ibn Maimon
- Music
- Musica universalis
- Musical historicism
- Musicology
- Musonius Rufus
- Mussar movement
- Mutatis mutandis
- Mutual aid (organization theory)
- Mutual Aid: A Factor of Evolution
- Mutual liberty
- Mutualism (economic theory)
- Mutually exclusive events
- My Philosophical Development
- Myia
- Mykhailo Drahomanov
- Mylan Engel
- Myles Burnyeat
- Myles Frederic Burnyeat
- Myōe
- Myson of Chenae
- Mysterium Cosmographicum
- Mystical experience
- Mystical philosophy of antiquity
- Mystical realism
- Mystical theology
- Mysticism
- Myth of Er
- Myth of Progress
- Myth of the given
- Mythologies (book)
- Mythos (Aristotle)
N edit
- N-tuple
- Nabat
- Nachman Krochmal
- Nader El-Bizri
- Nae Ionescu
- Nagarjuna
- Nāgārjuna
- Nahmanides
- Naïve empiricism
- Naive realism
- Naïve realism
- Najmuddin Kubra
- Nakae Chōmin
- Nalin de Silva
- Namarupa
- Name
- Name calling
- Names
- Naming and Necessity
- Namus
- Nancey Murphy
- Nancy Cartwright (philosopher)
- Narayana Guru
- Narhar Ambadas Kurundkar
- Naropa
- Narrative
- Nasir al-Din al-Tusi
- Nasir Khusraw
- Nassim Nicholas Taleb
- Nasty, brutish, and short
- Nate Ackerman
- Nathan Birnbaum
- Nathan Salmon
- Nathaniel Culverwell
- Nation
- National-Anarchism
- National character
- National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research
- National Federation of Atheist, Humanist and Secular Student Societies
- National Research Act
- National Secular Society
- Nationalism
- Nationalism and Culture
- Nationalism studies
- Nations and Nationalism
- Nativism
- Natura naturans
- Natura naturata
- Natura non facit saltus
- Natural (disambiguation)
- Natural and legal rights
- Natural deduction
- Natural Design
- Natural evil
- Natural justice
- Natural kind
- Natural language
- Natural law
- Natural laws
- Natural light
- Natural morality
- Natural number
- Natural order (philosophy)
- Natural philosophy
- Natural religion
- Natural right
- Natural rights
- Natural selection
- Natural sign
- Natural slavery
- Natural Supernaturalism
- Natural theology
- Naturales quaestiones
- Naturalism
- Naturalism (arts)
- Naturalism (philosophy)
- Naturalistic fallacy
- Naturalistic pantheism
- Naturalization
- Naturalized epistemology
- Nature
- Nature (essay)
- Nature (innate)
- Nature (philosophy)
- Nature of God
- Nature versus nurture
- Naturphilosophie
- Naturwissenschaften
- Nausea (novel)
- Nausiphanes
- Navya-Nyāya
- Necessary and sufficient condition
- Necessary and sufficient conditions
- Necessary being
- Necessary condition
- Necessary truth
- Necessitarianism
- Necessity
- Ned Block
- Needs
- Neetham
- NEFAC
- Negarchy
- Negation
- Negative and positive rights
- Negative capability
- Negative Dialectics
- Negative feedback
- Negative freedom
- Negative liberty
- Negative rights
- Negative theology
- Negativity effect
- Neglect of probability
- Negotiation
- Negritude
- Neil Gillman
- Neil MacCormick
- Neil Tennant (philosopher)
- Neither Victims Nor Executioners
- Nel Noddings
- Neleus of Scepsis
- Nelly Richard
- Nelly Roussel
- Nelson Goodman
- Nemesius
- Nemesius of Emesa
- Neo-Aristotelianism (philosophy)
- Neo-conceptual art
- Neo-Confucianism
- Neo-Dada
- Neo-expressionism
- Neo-figurative
- Neo-Futurists
- Neo-Kantianism
- Neo-Luddism
- Neo-medievalism
- Neo-Objectivism
- Neo-pop
- Neo-primitivism
- Neo-Pythagoreanism
- Neo-romanticism
- Neo-Scholasticism
- Neo-theocracy
- Neo-Thomism
- Neoclassicism
- Neocolonial Dependence
- Neofunctionalism (sociology)
- Neomodern
- Neomodernism
- Neonatal perception
- Neoplatonism
- Neoplatonism and Christianity
- Neoplatonism and Gnosticism
- Neopragmatism
- Neopythagoreanism
- Neostoicism
- Neotribalism
- Nespelem (art)
- Néstor García Canclini
- Nestor Makhno
- Neti neti
- Netocracy
- Neue Slowenische Kunst
- Neural correlate
- Neural Darwinism
- Neural net
- Neurath's boat
- Neuroesthetics
- Neuroethics
- Neuromantic (Philosophy)
- Neurophenomenology
- Neurophilosophy
- Neuroscience
- Neutral monism
- Neutrality (philosophy)
- Neven Sesardic
- New Academy
- New Age
- New Confucianism
- New Democracy
- New England Reformers
- New England transcendentalism
- New England Transcendentalists
- New Essays on Human Understanding
- New Federalism
- New Foundations
- New historicism
- New legal realism
- New Libertarian Manifesto
- New mysterianism
- New Objectivity
- New Philosophers
- New realism
- New realism (philosophy)
- New religious movement
- New Revolutionary Alternative
- New Right
- New Sincerity
- New Thought
- New Times (politics)
- New Wittgenstein
- New York Figurative Expressionism
- Newcomb's paradox
- Newcomb's problem
- Newspeak
- Newton's flaming laser sword
- Newton da Costa
- Newtonian
- Newtonianism
- Niall Shanks
- Nicarete of Megara
- Niccolò Cabeo
- Niccolò Machiavelli
- Nichiren
- Nicholas Agar
- Nicholas Hill (scientist)
- Nicholas Kalliakis
- Nicholas Krebs
- Nicholas Kryfts
- Nicholas Leonicus Thomaeus
- Nicholas Maxwell
- Nicholas of Autrecourt
- Nicholas of Cusa
- Nicholas of Kues
- Nicholas Onufrievich Lossky
- Nicholas Rescher
- Nicholas Wolterstorff
- Nick Bostrom
- Nick Land
- Nick Ribush
- Nick Trakakis
- Nicla Vassallo
- Nicola Abbagnano
- Nicola Antonio Stigliola
- Nicolai A. Vasiliev
- Nicolai Hartmann
- Nicolás Gómez Dávila
- Nicolas Malebranche
- Nicolaus Copernicus
- Nicolaus Hieronymus Gundling
- Nicolaus of Damascus
- Nicolaus Taurellus
- Nicole C. Karafyllis
- Nicole Oresme
- Nicoletto Vernia
- Nicomachean Ethics
- Nicomachus
- Nicomachus (son of Aristotle)
- Nida Vasiliauskaitė
- Niels Bohr
- Niels Treschow
- Nietzsche's views on women
- Nietzsche-Archiv
- Nietzsche and free will
- Nietzsche and Philosophy
- Nietzsche contra Wagner
- Nietzschean affirmation
- Nigel Warburton
- Nigidius Figulus
- Nihilism
- Nihilist paradox
- Nikephoros Choumnos
- Nikola Milošević (politician)
- Nikolai Berdyaev
- Nikolai Bugaev
- Nikolai Fedorovich Federov
- Nikolai Fëdorovich Fëderov
- Nikolai Fyodorovich Fyodorov
- Nikolai Konstantinovich Mikhailovskii
- Nikolai Lobachevsky
- Nikolai Lossky
- Nikolai Putyatin
- Nikolas Kompridis
- Nikolay Chernyshevsky
- Nikolay Strakhov
- Nikos Kazantzakis
- Nimbarka
- Nina Karin Monsen
- Nine Noble Virtues
- Nino Cocchiarella
- Ninth Letter (Plato)
- Nirvana
- Nirvana (Jainism)
- Nirvana fallacy
- Nishi Amane
- Nishida Kitaro
- Nishida Kitarō
- Nishitani Keiji
- Nishkam Karma
- No Exit
- No true Scotsman
- Noam Chomsky
- Noam Chomsky's political views
- Noble Eightfold Path
- Noble lie
- Noble savage
- Nocebo
- Noe Ito
- Noël Carroll
- Noema
- Noesis (phenomenology)
- Noetics
- Noise
- Nomenclature
- Nominal definition
- Nominalism
- Nominalization
- Nomological danglers
- Nomos
- Nomothetic
- Nomothetic and idiographic
- Non-archimedean time
- Non-Aristotelian logic
- Non-classical logic
- Non-cognitivism
- Non-essentialism
- Non-Euclidean geometry
- Non-heart-beating donation
- Non-monotonic logic
- Non-philosophy
- Non-physical entity
- Non-politics
- Non-rigid designator
- Non-standard analysis
- Non-standard model
- Non-voting
- Non causa pro causa
- Non sequitur (logic)
- Nona L. Brooks
- Noncognitivism
- Noncontracting grammar
- Nondualism
- Noneism
- Nonfirstorderizability
- Nonmaleficence
- Nonsense
- Nontheism
- Nontheist Friend
- Nonviolence
- Noogony
- Noology
- Noosphere
- Norbert Bolz
- Norbert Leser
- Norberto Bobbio
- Nordic Journal of Philosophical Logic
- Norm (philosophy)
- Norm (sociology)
- Norm Daniels
- Norm of reciprocity
- Normal
- Normal form
- Normalization
- Norman Daniels
- Norman Geisler
- Norman Kemp Smith
- Norman Kretzmann
- Norman Malcolm
- Norman Melchert
- Norman Robert Campbell
- Norman Swartz
- Normative
- Normative ethics
- Normative science
- Normative statement
- Normlessness
- Northrop Frye
- Northwest School (art)
- Norwich School (art movement)
- Norwood Russell Hanson
- Nos, Book of the Resurrection
- Not even wrong
- Notation
- Notations
- Notes on "Camp"
- Nothing
- Nothingness
- Notion
- Notion (philosophy)
- Noumena
- Noumenon
- Nous
- Noûs
- Novalis
- Novum Organum
- Now and After
- Nuccio Ordine
- Núcleo de Estudos em Ética e Desconstrução
- Nuel Belnap
- Number
- Number theory
- Numenius
- Numenius of Apamea
- Numerical identity
- Numinous
- NuPRL
- Nur Ali Elahi
- Nuremberg Code
- Nursing ethics
- Nyaya
- Nyāya
- Nyāya Sūtras
- NYC Ya Basta Collective
- Nymphidianus of Smyrna
O edit
- Oath
- Oath of Asaph
- Obedience (human behavior)
- Object (philosophy)
- Object of the mind
- Objectification
- Objection (argument)
- Objective idealism
- Objective precision
- Objective reality
- Objectivism
- Objectivism: The Philosophy of Ayn Rand
- Objectivist movement
- Objectivist movement in India
- Objectivist philosophy
- Objectivist theory of value
- Objectivity (philosophy)
- Objectivity (science)
- Objet petit a
- Obligation
- Obscurantism
- Observation
- Observations on Man
- Observations on the Feeling of the Beautiful and Sublime
- Observer-expectancy effect
- Observer effect
- Obversion
- Occam's razor
- Occasion of sin
- Occasionalism
- Occurrent belief
- Ocellus Lucanus
- Ockham's razor
- Octave Garnier
- Octave Hamelin
- Octave Mirbeau
- Octavio Paz
- October (journal)
- Odium theologicum
- Odo of Châteauroux
- Oeconomicus
- Oedipus Rex
- Oenomaus of Gadara
- Oets Kolk Bouwsma
- Of Grammatology
- Of Miracles
- Of the Conduct of the Understanding
- Ogyū Sorai
- Okishio's theorem
- Olaf Helmer
- Olaf Stapledon
- Olavo de Carvalho
- Oleksiy Onyschenko
- Olga Hahn-Neurath
- Olga Taratuta
- Oligarchy
- Oliver Franks, Baron Franks
- Oliver Leaman
- Oliver Letwin
- Oliver Wendell Holmes Jr.
- Olympiodorus the Elder
- Olympiodorus the Younger
- Omar Khayyám
- Omega
- Omega-consistent
- Omega-regular language
- Omega language
- Omega Point
- Omission
- Omission bias
- Omnibenevolence
- Omnipotence
- Omnipotence paradox
- Omnipresence
- Omniscience
- Omphalos hypothesis
- On Ayn Rand
- On Breath
- On Bullshit
- On Certainty
- On Colors
- On Contradiction (Mao Zedong)
- On Denoting
- On Divination in Sleep
- On Dreams
- On Formally Undecidable Propositions of Principia Mathematica and Related Systems
- On Generation and Corruption
- On Indivisible Lines
- On Length and Shortness of Life
- On Liberty
- On Marvellous Things Heard
- On Melissus, Xenophanes, and Gorgias
- On Memory
- On Nature
- On Plants
- On Sleep
- On the Basis of Morality
- On the Bondage of the Will
- On the Concept of Irony with Continual Reference to Socrates
- On the Fourfold Root of the Principle of Sufficient Reason
- On the Freedom of the Will
- On the Genealogy of Morality
- On the Heavens
- On the Plurality of Worlds
- On the Poverty of Student Life
- On the Soul
- On the Universe
- On Things Heard
- On Truth
- On Truth and Lies in a Nonmoral Sense
- On Virtues and Vices
- On Vision and Colors
- On Youth, Old Age, Life and Death, and Respiration
- Onasander
- Onatas (philosopher)
- One-sided argument
- Onesicritus
- Onora O'Neill
- Onora O'Neill, Baroness O'Neill of Bengarve
- Ontic
- Onto-theology
- OntoClean
- Ontological argument
- Ontological argument for the existence of God
- Ontological commitment
- Ontological maximalism
- Ontological paradox
- Ontological pluralism
- Ontological security
- Ontologism
- Ontology
- Ontology alignment
- Ontotheology
- Op art
- Opaque context
- Open government
- Open-ended question
- Open-question argument
- Open sentence
- Open society
- Open source
- Open texture
- Open world assumption
- Openness
- Operant conditioning
- Operational definition
- Operationalism
- Operationalization
- Opinion
- Opium of the people
- Opportunity cost
- Oppression
- Optics
- Optimism
- Optimism bias
- Or Adonai
- Oration on the Dignity of Man
- Orch-OR
- Orchot Tzaddikim
- Ordered n-tuple
- Ordered pair
- Ordered set
- Ordinal utility
- Ordinary-language philosophy
- Ordinary and extraordinary care
- Ordinary language
- Ordinary language philosophy
- Orestes Brownson
- Organ donation
- Organ donation in Jewish law
- Organic (model)
- Organic composition of capital
- Organic law
- Organic society
- Organic statute
- Organic unity
- Organic work
- Organicism
- Organism
- Organizational ethics
- Organizing principle
- Organon
- Oriental despotism
- Orientalism
- Orientalism (book)
- Origen
- Origen the Pagan
- Origin of Consciousness in the Breakdown of the Bicameral Mind
- Original intent
- Original meaning
- Original position
- Original proof of Gödel's completeness theorem
- Original sin
- Originalism
- Orlando J. Smith
- Orpheus
- Orphism
- Orphism (art)
- Orphism (religion)
- Orthodox Trotskyism
- Orthogenesis
- Orthotes
- Oscar Wilde
- Oskar Becker
- Oskar Ewald
- Oskar Kraus
- Oskar Negt
- Osmund Lewry
- Ostension
- Ostensive definition
- Osvaldo Lira
- Oswald Hanfling
- Oswald Spengler
- Otfried Höffe
- Other (philosophy)
- Other minds
- Other minds problem
- Othmar Spann
- Otto Bauer
- Otto Buek
- Otto Friedrich Bollnow
- Otto Friedrich Gruppe
- Otto Kirchheimer
- Otto Liebmann
- Otto Mencke
- Otto Neurath
- Otto Selz
- Otto von Gierke
- Otto Weininger
- Ought
- Ought-is
- Ought-is distinction
- Ought-is problem
- Ought and is
- Our Generation
- Our Posthuman Future
- Ousia
- Out-group homogeneity bias
- Outcome bias
- Outlaw
- Outline of anarchism
- Outline of critical theory
- Outline of epistemology
- Outline of humanism
- Outline of logic
- Outline of philosophy
- Outline of theology
- Over-soul
- Overbelief
- Overconfidence effect
- Overdetermination
- Overlapping consensus
- Overproduction
- Overwhelming exception
- Owen Barfield
- Owen Flanagan
- Owenism
- Owl of Minerva
- Ownership
- Oxford Calculators
- Oxford Franciscan school
- Oxford Literary Review
P edit
- P. D. Ouspensky
- P. F. Strawson
- P. G. Winch
- Pacific Philosophical Quarterly
- Pacific Street Films
- Pacificism
- Pacifism
- Pacifism as Pathology: Notes on an American Pseudopraxis
- Package-deal fallacy
- Paconius Agrippinus
- Padmapadacharya
- Padmasambhava
- Pain
- Pain (philosophy)
- Paired opposites
- Pakistani philosophy
- Paleoconservatism
- Palingenesis
- Páll Skúlason
- Palla Strozzi
- Pamela Sue Anderson
- Pamprepius
- Pan-Africanism
- Pan-Slavism
- Pan Pingge
- Panaetius
- Panagiotis Kondylis
- Panait Cerna
- Panarchism
- Panayot Butchvarov
- Pancrates of Athens
- Pancritical rationalism
- Pandeism
- Panentheism
- Panic Movement
- Panlogism
- Panopticon
- Panpsychism
- Panrationalism
- Pantheism
- Pantheism controversy
- Panthoides
- Pantisocracy
- Paola Cavalieri
- Paolo da Pergola
- Paolo Virno
- Papunya Tula
- Parable of the Invisible Gardener
- Paracelsus
- Paraconsistency
- Paraconsistent logic
- Parade of horribles
- Paradigm
- Paradigm shift
- Paradox
- Paradox of analysis
- Paradox of hedonism
- Paradox of the Court
- Paradox of the heap
- Paradox of the stone
- Paradox of tolerance
- Paradoxes
- Paradoxes of material implication
- Paradoxes of set theory
- Paradoxology
- Paragone
- Paralanguage
- Parallel distributed processing
- Parallel universe
- Parallelism
- Paramartha
- Pāramitā
- Paranormal phenomena
- Paraphrasis
- Parapsychology
- Pareidolia
- Parenting For Everyone
- Pareto efficiency
- Pareto optimality
- Pareto principle
- Paris Commune
- Park Yeol
- Parmenides
- Parmenides (dialogue)
- Parmenides Foundation
- Parousia
- Parrhesia
- Pars destruens/pars construens
- Parse tree
- Parser (magazine)
- Parsimony
- Parsing
- Part-whole theory
- Partial function
- Partial order
- Partial ordering
- Participation
- Participation (philosophy)
- Participatory democracy
- Participatory theory
- Particle physics
- Particular
- Particular proposition
- Particularism
- Particulars
- Partido por la Victoria del Pueblo
- Partiinost'
- Partition
- Partonomy
- Parts of Animals
- Parva Naturalia
- Pascal's wager
- Pascal's Wager
- Pascal Engel
- Pasicles of Thebes
- Pasquale Galluppi
- Passions (philosophy)
- Passions of the Soul
- Passive euthanasia
- Passive intellect
- Past
- Pastiche
- Patañjali
- 'Pataphysics
- Paternalism
- Pathetic fallacy
- Pathological fascism
- Pathological science
- Pathos
- Patience
- Patient advocacy
- Patient safety
- Patri Friedman
- Patriarch Gennadios II of Constantinople
- Patriarchalism
- Patricia Churchland
- Patricia Russell (nee Spence)
- Patrick Benedict Zimmer
- Patrick Edward Dove
- Patrick Suppes
- Patro the Epicurean
- Pattern
- Pau Sabater
- Paul-Henri-Dietrich d'Holbach
- Paul-Henri Thiry, Baron d'Holbach
- Paul-Louis Couchoud
- Paul A. Freund
- Paul Avrich
- Paul Benacerraf
- Paul Bernays
- Paul Boghossian
- Paul Carus
- Paul Chamberlain
- Paul Churchland
- Paul Cobben
- Paul Copan
- Paul de Man
- Paul Deussen
- Paul Draper (philosopher)
- Paul Edwards (philosopher)
- Paul Erdős
- Paul Feyerabend
- Paul Fletcher (theologian)
- Paul Gerhard Natorp
- Paul Gochet
- Paul Grice
- Paul Guyer
- Paul Häberlin
- Paul Hensel
- Paul Horwich
- Paul Humphreys (philosopher)
- Paul J. Griffiths
- Paul Janet
- Paul Karl Feyerabend
- Paul Kurtz
- Paul Lorenzen
- Paul Moser
- Paul Natorp
- Paul Nizan
- Paul Nougé
- Paul of Venice
- Paul R. Patton
- Paul Ramsey (ethicist)
- Paul Ree
- Paul Rée
- Paul Ricoeur
- Paul Ricœur
- Paul Russell (philosopher)
- Paul Taylor (philosopher)
- Paul Thagard
- Paul Tillich
- Paul Virilio
- Paul Weiss (philosopher)
- Paul Woodruff
- Paul Yorck von Wartenburg
- Paul Ziff
- Paulin J. Hountondji
- Paulo Cesar Duque-Estrada
- Paulo Freire
- Paulus Persa
- Paulus Venetus
- Pavel Aleksandrovich Florenskii
- Pavel Florensky
- Pavel Tichý
- Peace
- Peace in Islamic philosophy
- Peacekeeping
- Peak–end rule
- Peano axioms
- Peano postulates
- Pedro da Fonseca (philosopher)
- Pedro Hurtado de Mendoza
- Peirce's law
- Pekka Himanen
- Pelagianism
- Pelagius
- Pema Chödrön
- Penelope Mackie
- Penelope Maddy
- Pennsylvania Impressionism
- Pensées
- Pension spiking
- Pentti Linkola
- People (disambiguation)
- Pepita Carpeña
- Per Bauhn
- Per Martin-Löf
- Percept
- Perception
- Percepts
- Perceptual paradox
- Percy Williams Bridgman
- Perdurance
- Perdurantism
- Peregrinus Proteus
- Perennial philosophy
- Perfect competition
- Perfect solution fallacy
- Perfection
- Perfection (concept)
- Perfection (disambiguation)
- Perfectionism (philosophy)
- Performance
- Performative
- Performative contradiction
- Performative text
- Performative utterance
- Performative utterances
- Performatives
- Performativity
- Performing art
- Perictione
- Peripatetic axiom
- Peripatetic school
- Peripatetics
- Peripatos
- Peritrope
- Periyar E. V. Ramasamy
- Perlocutionary act
- Permanent war economy
- Permission (philosophy)
- Perpetual peace
- Persaeus
- Persecution
- Persecution and the Art of Writing
- Persecution of philosophers
- Persian Letters
- Persian Psalms
- Persistence
- Person
- Personal identity
- Personal life
- Personal life of Marcus Tullius Cicero
- Personalism
- Personhood
- Persons
- Perspective (cognitive)
- Perspectives on Anarchist Theory
- Perspectivism
- Persuasive definition
- Persuasive technology
- Perverse incentive
- Perversion
- Pessimism
- Pessimistic induction
- Peter A. Singer
- Peter Abelard
- Peter Achinstein
- Peter Arshinov
- Peter Aureol
- Peter B. Andrews (mathematician)
- Peter Bieri (author)
- Peter Browne (theologian)
- Peter Carruthers (philosopher)
- Peter Caws
- Peter Ceffons
- Peter Crockaert
- Peter D. Klein
- Peter Damian
- Peter de Rivo
- Peter Deunov
- Peter Dews
- Peter F. Strawson
- Peter Frederick Strawson
- Peter Geach
- Peter Gelderloos
- Peter Glassen
- Peter Godfrey-Smith
- Peter Goldie
- Peter Hacker
- Peter Hallward
- Peter Helias
- Peter Janich
- Peter John Olivi
- Peter Joseph Elvenich
- Peter Kaufmann (philosopher)
- Peter Kingsley
- Peter Kreeft
- Peter Kropotkin
- Peter Lavrovich Lavrov
- Peter Lipton
- Peter Lombard
- Peter Ludlow
- Peter Lunenfeld
- Peter Millican
- Peter Munz
- Peter Ochs
- Peter of Ailly
- Peter of Auvergne
- Peter of Capua the Elder
- Peter of Corbeil
- Peter of Poitiers
- Peter of Spain
- Peter Olivi
- Peter Pagin
- Péter Pázmány
- Peter Railton
- Peter Serracino Inglott
- Peter Simons
- Peter Singer
- Peter Sloterdijk
- Peter Steinberger
- Peter Stephen Du Ponceau
- Peter Stillman (academic)
- Peter Strawson
- Peter Suber
- Peter the Iberian
- Peter Thielst
- Peter Thomas Geach
- Peter Tudvad
- Peter Unger
- Peter Vallentyne
- Peter van Inwagen
- Peter Vardy (theologian)
- Peter Wenz
- Peter Wessel Zapffe
- Peter Winch
- Petitio principii
- Petr Alekseevich Kropotkin
- Pëtr Alekseevich Kropotkin
- Petr Lavrovich Lavrov
- Pëtr Lavrovich Lavrov
- Petrarch
- Petre Ţuţea
- Petrick's method
- Petrus Aureolus
- Petrus de Ibernia
- Petrus Ramus
- Phaedo
- Phaedo of Elis
- Phaedrus (dialogue)
- Phaedrus the Epicurean
- Phaleas of Chalcedon
- Phallogocentrism
- Phaneron
- Phanias of Eresus
- Phanto of Phlius
- Phase space
- Phenomena
- Phenomenal
- Phenomenal conservatism
- Phenomenalism
- Phenomenological definition of God
- Phenomenological life
- Phenomenological reduction
- Phenomenological Sociology
- Phenomenology (philosophy)
- Phenomenology of essences
- Phenomenology of Perception
- Phenomenology of religion
- Phenomenon
- Pherecydes of Syros
- Phi Sigma Tau
- Philanthropreneur
- Philanthropy
- Philebus
- Philia
- Philip Berrigan
- Philip Faber
- Philip Grosser
- Philip H. Rhinelander
- Philip Hallie
- Philip II of Macedon
- Philip Jourdain
- Philip Kitcher
- Philip L. Quinn
- Philip Mazzei
- Philip Melanchthon
- Philip Mirowski
- Philip of Opus
- Philip Pettit
- Philip the Chancellor
- Philip Wheelwright
- Philip Willem van Heusde
- Philip Zhai
- Philipp Albert Stapfer
- Philipp Frank
- Philipp Mainländer
- Philipp Melanchthon
- Philippa Foot
- Philippa R. Foot
- Philippe Devaux
- Philippe Lacoue-Labarthe
- Philippe Nys
- Philippe Van Parijs
- Philiscus of Aegina
- Philiscus of Thessaly
- Philistinism
- Philistus
- Phillip Cary
- Phillip H. Wiebe
- Philo
- Philo's view of God
- Philo's Works
- Philo (journal)
- Philo Judaeus
- Philo of Alexandria
- Philo of Larissa
- Philo the Dialectician
- Philo the Megarian
- Philodemus
- Philolaus
- Philonides of Laodicea
- Philoponus
- Philosophaster
- Philosophe
- Philosopher
- Philosopher's axe
- Philosopher's Axe
- Philosopher's football
- Philosopher's Football
- Philosopher's stone
- Philosopher's Stone
- Philosopher's Walk
- Philosopher's wool
- Philosopher-king
- Philosopher Han Xiang
- Philosopher king
- Philosopher Kings
- Philosopher of history
- Philosopher of science
- Philosopher stone
- Philosophers
- Philosophers' Football
- Philosophers' Imprint
- Philosophers' stone
- Philosophers Football Match
- Philosophes
- Philosophia Africana
- Philosophia perennis
- Philosophiae Naturalis Principia Mathematica
- Philosophic
- Philosophic school
- Philosophic sin
- Philosophical
- Philosophical analysis
- Philosophical anarchism
- Philosophical anthropology
- Philosophical arguments for censorship
- Philosophical aspects of the abortion debate
- Philosophical Consultancy
- Philosophical counseling
- Philosophical Counseling
- Philosophical dictionaries and encyclopaedias
- Philosophical dictionaries and encyclopedias
- Philosophical Dictionary
- Philosophical Explanations
- Philosophical Explorations
- Philosophical fiction
- Philosophical Foundations of Marxist-Leninist Atheism
- Philosophical Fragments
- Philosophical Gourmet
- Philosophical Gourmet Report
- Philosophical idealism
- Philosophical Inquiries into the Essence of Human Freedom
- Philosophical interpretation of classical physics
- Philosophical introspection
- Philosophical intuition
- Philosophical Investigations
- Philosophical Investigations (journal)
- Philosophical Issues
- Philosophical journals
- Philosophical language
- Philosophical logic
- Philosophical method
- Philosophical Method
- Philosophical method/Introduction
- Philosophical movement
- Philosophical Movements
- Philosophical naturalism
- Philosophical naturalist
- Philosophical novel
- Philosophical Perspectives
- Philosophical pessimism
- Philosophical presentism
- Philosophical problems of testimony
- Philosophical progress
- Philosophical Psychology (journal)
- Philosophical Radicals
- Philosophical realism
- Philosophical scepticism
- Philosophical School of Elis
- Philosophical schools
- Philosophical sin
- Philosophical skepticism
- Philosophical Studies
- Philosophical subdisciplines
- Philosophical Subdisciplines
- Philosophical theism
- Philosophical theology
- Philosophical theories
- Philosophical theory
- Philosophical Topics
- Philosophical Transactions
- Philosophical view
- Philosophical View
- Philosophical Writings
- Philosophical zombie
- Philosophie Zoologique
- Philosophies
- Philosophy
- Philosophy (journal)
- Philosophy and literature
- Philosophy and Literature
- Philosophy and Phenomenological Research
- Philosophy and Public Affairs
- Philosophy and Real Politics
- Philosophy and religion of the Tlingit
- Philosophy and science
- Philosophy and Social Hope
- Philosophy and space and time
- Philosophy and Spiritualism of Sri Aurobindo
- Philosophy and the Mirror of Nature
- Philosophy as Cultural Politics
- Philosophy basic topics
- Philosophy Documentation Center
- Philosophy East and West
- Philosophy encyclopedia
- Philosophy for Children
- Philosophy For Children
- Philosophy in a New Key
- Philosophy in Canada
- Philosophy in the Bedroom
- Philosophy in the Soviet Union
- Philosophy in the Tragic Age of the Greeks
- Philosophy naturalism
- Philosophy Now
- Philosophy of accounting
- Philosophy of action
- Philosophy of Africa
- Philosophy of Aristotle
- Philosophy of Arithmetic (book)
- Philosophy of art
- Philosophy of artificial intelligence
- Philosophy of biology
- Philosophy of Buddhism
- Philosophy of business
- Philosophy of chemistry
- Philosophy of color
- Philosophy of Common Sense
- Philosophy of composition
- Philosophy of computer science
- Philosophy of copyright
- Philosophy of design
- Philosophy of dialogue
- Philosophy of economics
- Philosophy of Economics
- Philosophy of education
- Philosophy of Education
- Philosophy of engineering
- Philosophy of Existence
- Philosophy of film
- Philosophy of Freedom
- Philosophy of Friedrich Nietzsche
- Philosophy of futility
- Philosophy of geography
- Philosophy of healthcare
- Philosophy of history
- Philosophy of information
- Philosophy of knowledge
- Philosophy of language
- Philosophy of Language
- Philosophy of law
- Philosophy of Law
- Philosophy of life
- Philosophy of Life
- Philosophy of literature
- Philosophy of logic
- Philosophy of Logic
- Philosophy of love
- Philosophy of mathematics
- Philosophy of mathematics education
- Philosophy of Mathematics Education Journal
- Philosophy of Max Stirner
- Philosophy of mind
- Philosophy of Mind
- Philosophy of mixed government
- Philosophy of music
- Philosophy of naturalism
- Philosophy of nature
- Philosophy of neuroscience
- Philosophy of organism
- Philosophy of Organism
- Philosophy of perception
- Philosophy of Perception
- Philosophy of physics
- Philosophy of probability
- Philosophy of psychology
- Philosophy of religion
- Philosophy of Religion
- Philosophy of science
- Philosophy of Science
- Philosophy of Science (journal)
- Philosophy of Science Association
- Philosophy of sex
- Philosophy of social science
- Philosophy of Social Science
- Philosophy of social sciences
- Philosophy of Søren Kierkegaard
- Philosophy of space and time
- Philosophy of Spinoza
- Philosophy of statistics
- Philosophy of suicide
- Philosophy of technology
- Philosophy of the mind
- Philosophy of the social sciences
- Philosophy of thermal and statistical physics
- Philosophy of Thermal and Statistical Physics
- Philosophy of time
- Philosophy of war
- Philosophy realism
- Philosophy Talk
- Philosophy, Politics and Economics
- Philosophy, Psychiatry, & Psychology
- Philosophy: The Quest for Truth
- Philosophy: Who Needs It
- Philostratus
- Philotheus Boehner
- PhilPapers
- Phintys
- Phonaesthetics
- Phonemic imagery
- Phonestheme
- Phonocentrism
- Photios I of Constantinople
- Photorealism
- Phrase structure
- Phronesis
- Physical attractiveness
- Physical body
- Physical law
- Physical ontology
- Physical symbol system
- Physicalism
- Physician-assisted suicide
- Physician–patient privilege
- Physics (Aristotle)
- Physics envy
- Physiognomonics
- Physis
- Pi
- Picture language
- Picture superiority effect
- Pictures
- Picturesque
- Pien
- Pieranna Garavaso
- Piergiorgio Odifreddi
- Pierre-André Taguieff
- Pierre-Joseph Proudhon
- Pierre-Maurice-Marie Duhem
- Pierre-Simon Ballanche
- Pierre-Simon Laplace
- Pierre-Simon, Marquis de Laplace
- Pierre-Sylvain Regis
- Pierre-Sylvain Régis
- Pierre Abailard
- Pierre Abélard
- Pierre Bayle
- Pierre Besnard
- Pierre Bourdieu
- Pierre Boutang
- Pierre Cally
- Pierre Charron
- Pierre d'Ailly
- Pierre Daniel Huet
- Pierre de Bar
- Pierre de la Ramee
- Pierre de la Ramée
- Pierre Duhem
- Pierre Eugene du Simitiere
- Pierre Gassendi
- Pierre Hadot
- Pierre Hyacinthe Azais
- Pierre Jean George Cabanis
- Pierre Klossowski
- Pierre La Ramee
- Pierre La Ramée
- Pierre Laffitte
- Pierre Laromiguière
- Pierre Lecomte du Noüy
- Pierre Leroux
- Pierre Lévy (philosopher)
- Pierre Manent
- Pierre Maurice Marie Duhem
- Pierre Monatte
- Pierre Nicole
- Pierre Paul Royer-Collard
- Pierre Teilhard de Chardin
- Piers Benn
- Pietas (virtue)
- Pieter Nicolaas van Eyck
- Pietism
- Pietro Alcionio
- Pietro d'Abano
- Pietro Pomponazzi
- Pietro Ubaldi
- Pietro Verri
- Piety
- Pineal gland
- Pio Colonnello
- Pioneers of American Freedom
- Piotr Chmielowski
- Piotr Lenartowicz
- Pirate utopia
- Pirmin Stekeler-Weithofer
- Pirsig's metaphysics of Quality
- Pistis
- Pistolerismo
- Pity
- Piya Tan
- Placebo
- Placide Tempels
- Plagiarism
- Plane of immanence
- Plane Stupid
- Plank of Carneades
- Planned economy
- Planned obsolescence
- Planning fallacy
- Plantinga's free-will defense
- Plasticien
- Platform Sutra
- Platformism
- Plato
- Plato's allegory of the cave
- Plato's divided line
- Plato's Dream
- Plato's five regimes
- Plato's four cardinal virtues
- Plato's metaphor of the Sun
- Plato's number
- Plato's Problem
- Plato's Republic
- Plato's tripartite theory of soul
- Plato and a Platypus Walk Into a Bar
- Platonia (philosophy)
- Platonic Academy
- Platonic Academy (Florence)
- Platonic epistemology
- Platonic form
- Platonic idealism
- Platonic love
- Platonic realism
- Platonism
- Platonism in the Renaissance
- Plausibility
- Playing God (ethics)
- Pleasure
- Pleasure principle (psychology)
- Plenist
- Plenitude principle
- Plenitude
- Pleonexia
- Pleroma
- Pliny the Elder
- Pliny the Younger
- Plotinus
- Plural quantification
- Pluralism (philosophy)
- Pluralism (political philosophy)
- Pluralist school
- Pluralist theories of truth
- Plutarch
- Plutarch of Athens
- Plutarch of Chaeronea
- Plutocracy
- Pneuma
- Pneuma (Stoic)
- Poale Zion
- Poetics (Aristotle)
- Poetry
- Poiesis
- Poisoning the well
- Polarity
- Polarized pluralism
- Polemarchus
- Polemic (magazine)
- Polemon (scholarch)
- Polemon of Athens
- Polemon of Laodicea
- Policraticus
- Polish logic
- Polish Logic
- Polish notation
- Polish philosophy
- Politeia
- Politeness
- Political
- Political argument
- Political consciousness
- Political culture
- Political engineering
- Political ideologies in the United States
- Political jurisprudence
- Political Justice
- Political machine
- Political nihilism
- Political Order in Changing Societies
- Political particularism
- Political philosophy
- Political philosophy of Immanuel Kant
- Political pluralism
- Political positivism
- Political privacy
- Political radicalism
- Political rehabilitation
- Political sociology
- Political Soldier
- Political structure
- Political theology
- Political theory
- Politics
- Politics (Aristotle)
- Politics and Vision: Continuity and Innovation in Western Political Thought
- Politics Drawn from the Very Words of Holy Scripture
- Polity (Aristotle)
- Pollyanna principle
- Polus
- Polyaenus of Lampsacus
- Polylogism
- Polysemy
- Polystratus the Epicurean
- Polysyllogism
- Pons asinorum
- Pontus Wikner
- Pooh and the Philosophers
- Pop art
- Pope Gregory I
- Pope Sylvester II
- Popper's experiment
- Popper and After
- Popperian cosmology
- Popular assembly
- Popular Assembly of the Peoples of Oaxaca
- Popular errors
- Popular psychology
- Popular sovereignty
- Population
- Population ethics
- Populism
- Pornography
- Porphyrian tree
- Porphyry (philosopher)
- Port-Royal Grammar
- Port-Royal Logic
- Port-Royalists
- Poshlost
- Posidonius
- Posit
- Positions
- Positive environmentalism
- Positive feedback
- Positive freedom
- Positive law
- Positive statement
- Positivism
- Positivism dispute
- Positivity effect
- Possession (Proudhon)
- Possibilianism
- Possibility
- Possible world
- Possible worlds
- Post-anarchism
- Post-colonial anarchism
- Post-egoism
- Post-Futurism
- Post-Impressionism
- Post-industrial society
- Post-left anarchy
- Post-Marxism
- Post-materialism
- Post-modernism
- Post-positivist
- Post-postmodernism
- Post-purchase rationalization
- Post-romanticism
- Post-Scarcity Anarchism
- Post-structuralism
- Post correspondence problem
- Post hoc ergo propter hoc
- Post hoc, ergo propter hoc
- Postanalytic philosophy
- Postcard paradox
- Postcolonialism
- Posterior Analytics
- Postfoundationalism
- Posthegemony
- Posthuman
- Posthumanism
- Posthumous sperm retrieval
- Postminimalism
- Postmodern
- Postmodern art
- Postmodern Christianity
- Postmodern philosophy
- Postmodern psychology
- Postmodern social construction of nature
- Postmodern theology
- Postmodernism
- Postmodernism in political science
- Postmodernism, or, the Cultural Logic of Late Capitalism
- Postmodernity
- Postpositivism
- Potamo of Alexandria
- Potency
- Potentiality
- Potentiality and actuality
- Potter Box
- Poul Martin Møller
- Pour soi
- Poverty of the stimulus
- Power (philosophy)
- Power (sociology)
- Power harassment
- Power set
- Power: A New Social Analysis
- Prabhākara
- Prabhat Ranjan Sarkar
- Practical
- Practical Anarchy
- Practical arguments
- Practical Ethics
- Practical Metaphysics
- Practical philosophy
- Practical reason
- Practical reasoning
- Practical syllogism
- Practice in Christianity
- Praepositinus
- Prafulla Kumar Sen
- Pragma-dialectics
- Pragmatic contradiction
- Pragmatic mapping
- Pragmatic maxim
- Pragmatic theory of truth
- Pragmaticism
- Pragmatics
- Pragmatism
- Praise
- Prakṛti
- Pramana
- Pratītyasamutpāda
- Pratyekabuddha
- Práxedis Guerrero
- Praxeology
- Praxiphanes
- Praxis
- Praxis (process)
- Praxis intervention
- Praxis Journal of Philosophy
- Praxis school
- Praxis School
- Prayer
- Pre-established harmony
- Pre-Socratic philosophy
- Pre-Socratics
- Pre-theoretic belief
- Precarity
- Precautionary principle
- Precept
- Precising definition
- Precision bias
- Precognition
- Precolonialism
- Preconscious
- Predestination
- Predestination paradox
- Predicables
- Predicate (logic)
- Predicate abstraction
- Predicate calculus
- Predicate logic
- Prediction
- Prediction theory of law
- Predictive power
- Predrag Vranicki
- Preestablished harmony
- Preexistence
- Preface paradox
- Prefaces
- Preference
- Preference utilitarianism
- Prefigurative politics
- Prefix grammar
- Preformation theory
- Preformationism
- Prehension
- Preintuitionism
- Prejudice
- Premise
- Prenex normal form
- Prescriptivism
- Prescriptivity
- Present
- Presentationism
- Presentism (historical analysis)
- Presocratic philosophy
- Presupposition
- Presupposition (philosophy)
- Preventable medical error
- Prevention of Disasters Principle
- Prevention paradox
- Price discrimination
- Prices of production
- Pride
- Prima facie
- Prima facie duties
- Prima facie duty
- Prima facie right
- Primary and secondary qualities
- Primary qualities
- Primary substance
- Primary/secondary quality distinction
- Primitivism
- Primum movens
- Primum non nocere
- Prince Shōtoku
- Principia Ethica
- Principia Mathematica
- Principium individuationis
- Principle
- Principle of bivalence
- Principle of charity
- Principle of compositionality
- Principle of comprehension
- Principle of contradiction
- Principle of double effect
- Principle of excluded middle
- Principle of explosion
- Principle of Generic Consistency
- Principle of humanity
- Principle of identity
- Principle of indifference
- Principle of individuation
- Principle of insufficient reason
- Principle of law
- Principle of non-contradiction
- Principle of nonvacuous contrast
- Principle of parsimony
- Principle of rationality
- Principle of subsidiarity
- Principle of sufficient reason
- Principle of uncertainty
- Principles
- Principles of Mathematical Logic
- Principles of Philosophy
- Principlism
- Prior Analytics
- Prior probability
- Priscian of Lydia
- Priscus of Epirus
- Prisoner's dilemma
- Privacy
- Private language
- Private language argument
- Private language problem
- Private law
- Private sphere
- Privation
- Privatism
- Privilege (legal ethics)
- Privileged access
- Priya Reddy
- Pro-aging trance
- Pro hominem
- Proactionary principle
- Probabilism
- Probabilistic automaton
- Probabilistic causation
- Probabilistic independence
- Probability
- Probability calculus
- Probability interpretations
- Probability theory
- Problem
- Problem-based learning
- Problem of evil
- Problem of evil in Hinduism
- Problem of future contingents
- Problem of Hell
- Problem of induction
- Problem of love
- Problem of mental causation
- Problem of multiple generality
- Problem of other minds
- Problem of the criterion
- Problem of universals
- Problematization
- Problems (Aristotle)
- Problems of Peace and Socialism
- Procedural democracy
- Procedural knowledge
- Proceedings of the American Philosophical Society
- Process (philosophy)
- Process and Reality
- Process art
- Process of elimination
- Process philosophy
- Process theism
- Process theology
- Proclus
- Proclus Mallotes
- Procreative beneficence
- Prodicus
- Product term
- Production theory
- Productive forces
- Profane Existence
- Professional courtesy
- Professional ethics
- Professional responsibility
- Professor of Moral Philosophy, Glasgow
- Profiat Duran
- Programming language
- Progress (history)
- Progression of Animals
- Progressivism in the United States
- Prohairesis
- Projectivism
- Prolegomena to Any Future Metaphysics
- Prolepsis
- Proletarian internationalism
- Proletarianization
- Proletariat
- Proletkult
- Promise
- Proof-theoretic semantics
- Proof by assertion
- Proof by contradiction
- Proof by example
- Proof by exhaustion
- Proof by intimidation
- Proof net
- Proof theory
- Proofs and Refutations
- Proofs of eternity
- Propaganda
- Propaganda of the deed
- Propensity
- Propensity probability
- Proper class
- Proper name (philosophy)
- Proper names
- Propertarianism
- Properties
- Property
- Property (philosophy)
- Property dualism
- Property is theft!
- Prophecy
- Proportional reasoning
- Proportionalism
- Proportionality (law)
- Proposition
- Proposition (philosophy)
- Propositional attitude
- Propositional attitudes
- Propositional function
- Propositional knowledge
- Propositional logic
- Propositional operator
- Propositional representation
- Proprietism
- Proprioception
- Proprium
- Prosecutor's fallacy
- Proslogion
- Prosyllogism
- Protagoras
- Protagoras (dialogue)
- Protasis
- Protected values
- Protestant ethic
- Protestant work ethic
- Protests in Washington, D.C. against the International Monetary Fund and the World Bank
- Prototype theory
- Protrepsis and paraenesis
- Provability logic
- Provo (movement)
- Proxenus of Atarneus
- Proximate and ultimate causation
- Prudence
- Prudentialism
- Pseudo-Aristotle
- Pseudo-Demikristo
- Pseudo-Dionysius
- Pseudo-Dionysius the Areopagite
- Pseudo-philosophy
- Pseudo-Plutarch
- Pseudo-science
- Pseudo-secularism
- Pseudo atheism
- Pseudocertainty effect
- Pseudohallucination
- Pseudomathematics
- Pseudophilosophy
- Pseudorandomness
- Pseudoreligion
- Pseudoscience
- Psyche (psychology)
- Psychedelia
- Psychical distance
- Psychical Nomadism
- Psychoanalysis
- Psychoanalysis and Religion
- Psycholinguistics
- Psychological behaviorism
- Psychological egoism
- Psychological hedonism
- Psychological nominalism
- Psychological pain
- Psychological pricing
- Psychological projection
- Psychologism
- Psychologist's fallacy
- Psychology of art
- Psychology of reasoning
- Psychology, Philosophy and Physiology
- Psychophysical parallelism
- Psychophysics
- Ptolemy
- Ptolemy-el-Garib
- Public Administration
- Public good
- Public interest
- Public morality
- Public order crime
- Public reason
- Public sector ethics
- Public sphere
- Public trust
- Publication bias
- Publication history of The Ego and Its Own
- Publius Clodius Thrasea Paetus
- Publius Egnatius Celer
- Puddle thinking
- Pumping lemma for context-free languages
- Punctuality
- Punishment
- Punk ideologies
- Punk visual art
- Pure practical reason
- Pure reason
- Pure thought
- Purgatory
- Purity of arms
- Purpose of government
- Purposive theory
- Purva Mimamsa
- Purva Mimamsa Sutras
- Pygmalion effect
- Pyotr Chaadayev
- Pyotr Novikov
- Pyrrho
- Pyrrho of Elis
- Pyrrhonian skepticism
- Pyrrhonism
- Pythagoras
- Pythagoreanism
- Python of Aenus
Q edit
- Q.E.D.
- Qazi Sa’id Qumi
- Qi
- Qian Dehong
- Qigong
- Qin Hui (historian)
- Qingjing Jing
- Qotb al-Din Shirazi
- Qualia
- Qualification problem
- Qualisign
- Qualitative identity
- Quality-adjusted life year
- Quality (philosophy)
- Quality of life
- Quantification
- Quantifier
- Quantifier elimination
- Quantifier shift
- Quantifier shift fallacy
- Quantity
- Quantum field theory
- Quantum indeterminacy
- Quantum logic
- Quantum measurement problem
- Quantum mechanics
- Quantum mind
- Quantum mysticism
- Quasi-empirical method
- Quasi-empiricism
- Quasi-empiricism in mathematics
- Quasi-quotation
- Quasi-realism
- Quassim Cassam
- Quaternio terminorum
- Queer heterosexuality
- Queer pedagogy
- Queer theory
- Quentin Meillassoux
- Quentin Smith
- QUEST: An African Journal of Philosophy
- Question
- Questionable cause
- Quiddity
- Quietism
- Quietism (Christian philosophy)
- Quine's paradox
- Quine–McCluskey algorithm
- Quinque viae
- Quinque voces
- Quintus Lucilius Balbus
- Quintus Septimus Florens Tertullian
- Quintus Sextius
- Quis custodiet ipsos custodes?
- Quotation