This is a list of notable professional male mixed martial arts fighters in alphabetical order.
A
edit
Serhii Adamchuk - (M-1)
Hamdy Abdelwahab - (UFC)
Abdul-Aziz Abdulvakhabov - (ACB)- Shamil Abdurakhimov - (UFC)
Tank Abbott - (UFC, Pride, Strikeforce)
Daichi Abe - (UFC, Pancrase)- Hiroyuki Abe - (Shooto, KOTC, Cage Rage, DEEP, Pride)
Papy Abedi - (UFC, Shooto)
Cyril Abidi - (K-1)
Klidson Abreu - (UFC, Brave CF, M-1 Global, Jungle Fight)
Aaron Aby - (Oktagon MMA, ACB, CWFC)- Daniel Acácio - (Pride, M-1, Shooto, Jungle Fight, KSW)
Bernard Ackah - (DEEP, K-1 Hero's)- Akihiko Adachi - (Shooto)
- Juan Adams - (UFC, PFL, LFA)
Zarrukh Adashev - (UFC, Bellator)
Israel Adesanya - (UFC)- Sam Adkins - (UFC)
Peter Aerts - (K-1, K-1 Hero's)- AJ Agazarm - (Bellator)
- Kevin Aguilar - (UFC, Bellator, LFA)
- Christian Aguilera - (LFA, BAMMA)
Bashir Ahmad - (OneFC)- Katsuhisa Akasaki - (Shooto)
- Omari Akhmedov - (UFC)
- Jin Akimoto - (Shooto)
- Yoshihiro Akiyama - (K-1, K-1 Hero's, DREAM, UFC)
Mostapha Al-Turk - (Cage Rage, UFC)- Tony Alanis - (WEC)
Amir Albazi - (UFC)- John Albert - (UFC)
- Junior Albini - (UFC)
Karl Albrektsson - (Bellator)- Ildemar Alcântara - (Jungle Fight, UFC)
- Iuri Alcântara - (Jungle Fight, WEC, UFC)
Hector Aldana - (UFC)- José Aldo - (Shooto, Jungle Fight, Pancrase, WEC, UFC)
- Jim Alers - (UFC, CWFC)
John Alessio - (DREAM, KOTC, Pancrase, PRIDE, UFC, WEC, MFC, TPF, Bellator)- Houston Alexander - (Adrenaline MMA, KSW, UFC, Bellator, OneFC)
- Cosmo Alexandre - (Bellator, OneFC)
- Bill Algeo - (UFC)
- Royce Alger - (UFC)
Abdul Razak Alhassan - (UFC)
Amir Aliakbari - (Rizin, ACB)- Sultan Aliev - (Bellator, UFC)
- Ikram Aliskerov - (UFC, Brave CF)
- John Allan - (UFC)
- Arnold Allen - (UFC)
- Brendan Allen - (UFC, LFA))
Ben Alloway - (UFC, CWFC)
Asu Almabayev - (UFC)- César Almeida - (UFC)
- Jailton Almeida - (UFC)
- Ricardo Almeida - (Pancrase, PRIDE, UFC)
- Thomas Almeida - (UFC, Legacy)
- Eddie Alvarez - (OneFC, UFC, Bellator, DREAM, EliteXC, ShoXC)
Joel Álvarez - (UFC)- Sean Alvarez - (RINGS, KOTC, UFC)
- Rafael Alves - (UFC)
- Thiago Alves - (KOTC, UFC)
- Warlley Alves - (UFC, Jungle Fight)
- Sam Alvey - (KOTC, Bellator, MFC, UFC)
- Andre Amade - (DREAM, K-1 Hero's)
- Adlan Amagov - (Strikeforce, UFC)
- Raul Amaya - (Bellator)
- J. J. Ambrose - (Affliction, Bellator)
Alen Amedovski - (UFC, Bellator)
Makwan Amirkhani - (UFC)- Karl Amoussou - (Pancrase, M-1, DREAM, CWFC, Strikeforce, Bellator)
Bertrand Amoussou-Guenou - (PRIDE)- Eryk Anders - (UFC, LFC, Bellator)
- Corey Anderson - (UFC, Bellator)
- Derek Anderson - (Bellator)
- Viscardi Andrade - (Jungle Fight, UFC)
Dylan Andrews - (UFC)- Reese Andy - (IFL, UFC)
Julius Anglickas - (Bellator, LFA)- Yoji Anjo - (PRIDE, DEEP, UFC)
- Magomed Ankalaev - (UFC)
- Gadzhimurad Antigulov - (ACB, UFC)
- Kelly Anundson - (Bellator)
- Shinsho Anzai - (UFC, Rizin)
- Shinya Aoki - (DEEP, DREAM, PRIDE, Shooto, OneFC, Bellator)
- Erik Apple - (KOTC, WEC, ShoXC, Strikeforce)
- Jo Arai - (Rizin, Shooto)
- Felipe Arantes - (UFC)
- Igor Araujo - (UFC, M-1, Shooto)
- Julio Arce - (UFC)
- Juan Archuleta - (Rizin, Bellator, KOTC, WSOF)
Andrei Arlovski - (Affliction, M-1, Strikeforce, EliteXC, UFC, OneFC, WSOF)- Austin Arnett - (UFC)
- Ricardo Arona - (PRIDE, RINGS)
Chalid Arrab - (K-1 Hero's, M-1, PRIDE)- Akbarh Arreola - (UFC, Pancrase)
- Antônio Arroyo - (UFC, LFA)
- Matt Arroyo - (UFC)
- Josh Appelt - (Bellator)
- Noboru Asahi - (DEEP, Shooto, VTJ)
- Kai Asakura - (UFC, Rizin)
- Mikuru Asakura - (Rizin, DEEP)
- Ryusei Ashizawa - (Rizin)
- Askar Askarov - (ACB, UFC)
- Cyril Asker - (UFC)
- Ben Askren - (Bellator, OneFC, UFC)
- Tom Aspinall - (UFC, BAMMA)
- Scott Askham - (UFC, KSW, BAMMA, ACB)
- João Assis - (M-1)
- Junior Assunção - (UFC, XFC, KOTC)
- Raphael Assunção - (WEC, UFC)
- Bazigit Atajev - (K-1 Hero's, Shooto, PRIDE, RINGS)
- Rich Attonito - (KOTC, UFC)
- Olivier Aubin-Mercier - (UFC)
- Fernando Augusto
- Marcus Aurélio - (KOTC, PRIDE, UFC, DREAM)
- Blas Avena - (WEC, Bellator)
- David Avellan - (WEC)
- Saad Awad - (Bellator, Strikeforce, KOTC)
- Javy Ayala - (Bellator)
Jessin Ayari - (UFC)- Ottman Azaitar - (UFC)
- Luiz Azeredo - (Bellator, Jungle Fight, Cage Rage, PRIDE, Shooto)
- Hunter Azure - (UFC, LFA)
B
edit
Abdul Azim badakhshi - (Shooto, Matrix Fight Night, Super Fight League- Wakashoyo Shunichi - (K-1 Hero's, DEEP)
Melsik Baghdasaryan - (UFC)
Ignacio Bahamondes - (UFC)- Ali Bagov - (ACB)
Danaa Batgerel - (UFC, LFC)- Niklas Bäckström - (UFC, CWFC)
- Seth Baczynski - (UFC, IFL, TPF, XFC)
- Ryan Bader - (KOTC, UFC, Bellator)
- Justin Baesman - (KOTC, Bellator, WSOF)
- Miguel Baeza - (UFC, Titan FC)
- Ali Bagautinov - (UFC)
- Siyar Bahadurzada - (Shooto, Strikeforce, Sengoku, UFC)
- Ignacio Bahamondes - (UFC)
- Shamar Bailey - (UFC, Strikeforce, Bellator, KOTC, M-1, XFC)
- Bryan Baker - (KOTC, WEC, MFC, Bellator)
Gustavo Balart - (ONE, Titan FC)- Oluwale Bamgbose - (UFC)
Humberto Bandenay - (UFC)
Tae Hyun Bang - (UFC, DEEP, M-1)- Antonio Banuelos - (DREAM, PFC, WEC, UFC, TPF)
- Renan Barão - (Shooto, Jungle Fight, WEC, UFC)
- Bryan Barberena - (UFC)
- Edson Barboza - (UFC)
- Raoni Barcelos - (UFC)
- Mansour Barnaoui - (Bellator, KSW, CWFC, BAMMA)
- Chris Barnett - (UFC)
- Luke Barnatt - (BAMMA, UFC, ACB, UCMMA)
- Josh Barnett - (Affliction, Pancrase, PRIDE, UFC, Sengoku, DREAM, Strikeforce)
- David Baron - (PRIDE, Shooto, CWFC, UFC)
- Phil Baroni - (Cage Rage, EliteXC, PRIDE, PFC, Strikeforce, UFC, Titan FC, OneFC, Bellator)
- Carlos Barreto - (IVC, UFC, PRIDE, RINGS, Jungle Fight, M-1)
Francisco Albano Barrio - (KSW)- Jason Barrett - (Cage Rage)
- Marc-André Barriault - (UFC)
- Francimar Barroso - (Shooto, UFC)
- Pat Barry - (UFC)
- Enrique Barzola - (UFC, PFL)
- Farid Basharat - (UFC)
- Javid Basharat - (UFC)
- Duane Bastress - (Bellator)
- Michel Batista - (UFC, M-1, Titan FC)
- Bryan Battle - (UFC)
- Alan Baudot - (UFC)
- Mario Bautista - (UFC)
- Chris Beal - (UFC)
- Rudy Bears - (Bellator, Strikeforce, M-1, Titan FC)
- Johnny Bedford - (UFC, Bellator, LFA)
- Chase Beebe - (KOTC, WEC, DREAM, Bellator)
- Lyle Beerbohm - (KOTC, ShoXC, Strikeforce, WSOF)
Mirsad Bektić - (Titan FC, RFA, UFC)- Alan Belcher - (UFC, Titan FC)
- Vitor Belfort - (Cage Rage, PRIDE, Affliction, Strikeforce, UFC)
Kevin Belingon - (URCC, Legend FC, OneFC)- Joey Beltran - (UFC, Bellator, KOTC, Strikeforce)
- Marco Beltrán - (UFC)
- Joseph Benavidez - (UFC, WEC, DREAM, PFC)
- Brandon Bender - (Bellator)
- Dave Beneteau - (UFC, KOTC)
- Eddy Bengtsson - (CWFC)
- Gabriel Benítez - (UFC)
- Charles Bennett - (KOTC, PRIDE, ShoXC, EliteXC)
- Lance Benoist - (UFC)
- Ryan Benoit - (MFC, UFC)
- Steve Berger - (Shooto, KOTC, UFC, Strikeforce)
- Bret Bergmark - (Pancrase, Strikeforce, WEC)
- Dennis Bermudez - (UFC, M-1)
- Manny Bermudez - (UFC)
Mike Bernardo- Keith Berry - (Bellator, Strikeforce, KOTC, WEC, ShoXC)
- Matt Bessette - (Bellator)
- Noah Bey - (Rizin)
- Alexandre Bezerra - (Bellator)
- Rony Mariano Bezerra - (UFC)
- Arjan Bhullar - (UFC)
- Magomed Bibulatov - (UFC, WSOF)
- David Bielkheden - (PRIDE, Cage Rage, CWFC, M-1, Shooto, UFC)
- Vitaly Bigdash - (ONE, ACB)
- Bam Bam Bigelow (†)
- Anthony Birchak - (UFC, Bellator, Rizin, LFA)
Michael Bisping - (Cage Rage, CWFC, UFC)- Amaury Bitetti - (UFC)
Tariel Bitsadze - (RINGS)- Todd Bjornethun - (Pancrase, Shooto, VTJ)
Jan Blachowicz - (KSW, UFC)- Jason Black - (UFC, PRIDE, WFA, KOTC)
- Brad Blackburn - (IFL, MFC, UFC, Bellator)
Maximo Blanco - (UFC, Strikeforce, Sengoku, Pancrase)- Curtis Blaydes - (UFC, RFA)
- Dan Bobish - (KOTC, PRIDE, UFC)
- Mark Bocek - (UFC, KOTC)
- Kyle Bochniak - (UFC)
- Tim Boetsch - (UFC, KOTC, IFL)
- Jerry Bohlander - (KOTC, UFC)
- Kotetsu Boku - (DREAM, K-1 Hero's, KOTC, Shooto, OneFC)
- Stephan Bonnar - (Jungle Fight, UFC, Bellator)
- Rogério Bontorin - (UFC, Rizin, Pancrase)
- Ray Borg - (KOTC, Legacy, UFC)
Ádám Borics - (PFL, Bellator)- Caio Borralho - (UFC)
- Tanner Boser - (UFC, M-1, ACB)
- Steve Bossé - (UFC)
- Marcus Bossett - (UFC)
- Ryan Bow - (World Shooto)
- Brian Bowles - (WEC, UFC)
- Roger Bowling - (Strikeforce, UFC)
- Anvar Boynazarov - (LFA)
- Paul Bradley - (Bellator, UFC)
- Ebenezer Fontes Braga - (Pancrase, Jungle Fight, PRIDE, UFC)
- Sean Brady - (UFC)
- Ramiz Brahimaj - (UFC)
- David Branch - (UFC, Bellator, WSOF, Titan FC)
- Diego Brandão - (UFC)
- Martin Bravo - (UFC)
- Tom Breese - (UFC, BAMMA)
- Chris Brennan - (KOTC, PRIDE, UFC, Shooto, Cage Rage)
- Lucas Brennan - (Bellator, PFL)
- Charlie Brenneman - (UFC, ShoXC)
- Jason Brilz - (UFC, KOTC, Titan FC)
- Marcus Brimage - (UFC)
- Henry Briones - (UFC, Legacy)
- Antwain Britt - (Strikeforce, YAMMA)
- Mike Bronzoulis - (Strikeforce, Bellator, Titan FC)
- Jonathan Brookins - (Bellator, WEC, UFC)
- Jarred Brooks - (ONE, Pancrase, UFC)
- Will Brooks - (Bellator, DREAM, UFC)
- Rob Broughton - (RINGS, Cage Rage, M-1, UFC)
- Damien Brown - (UFC)
- Matt Brown - (UFC)
- Mike Brown - (DEEP, WEC, UFC)
Randy Brown - (UFC)- T.J. Brown - (UFC)
- Travis Browne - (KOTC, Bellator, UFC)
- Steve Bruno - (UFC, IFL, MFC)
- Cody Brundage - (UFC)
- Derek Brunson - (Strikeforce, UFC, PFL)
- Justin Buchholz - (EliteXC, UFC)
- Zak Bucia - (Strikeforce, KOTC)
- Joaquin Buckley - (UFC)
- Mike Budnik - (KOTC, WEC)
- Paul Buentello - (KOTC, Strikeforce, Affliction, UFC, Legacy, Bellator)
- Modestas Bukauskas - (UFC, CWFC)
- Ilias Bulaid - (Bellator, Brave CF)
- Shawn Bunch - (Bellator)
- Shane Burgos - (UFC)
- Josh Burkman - (UFC, WSOF)
- LaRue Burley - (LFA, Bellator, KOTC, WSOF)
Mads Burnell - (PFL, UFC)- Mikey Burnett - (UFC)
- Gilbert Burns - (UFC)
- Herbert Burns - (UFC)
- Kevin Burns - (UFC)
- Nah-Shon Burrell - (Strikeforce, UFC, Bellator)
- Murilo Bustamante - (DEEP, Pancrase, Pride, UFC)
- Jason Butcher - (Bellator)
- Raphael Butler - (Bellator)
- Charles Byrd - (UFC)
C
edit- Yan Cabral - (UFC)
- Alex Caceres - (KOTC, UFC)
- Darrion Caldwell - (Bellator)
- Andrew Calandrelli - (Bellator)
Frank Camacho - (UFC)- Fabrício Camões - (UFC, Strikeforce, ShoXC, TPF)
- Brian Camozzi - (UFC, RFA)
- Chris Camozzi - (UFC, MFC)
- Shane Campbell - (MFC, WSOF)
- Derek Campos - (Bellator, KOTC)
- Will Campuzano - (UFC, WEC, VTJ)
- Aleksa Camur - (UFC)
- Chico Camus - (UFC, RFA)
- Luiz Cané - (UFC)
- Guido Cannetti - (UFC)
- Jared Cannonier - (UFC)
- Jose Canseco - (DREAM)
- Steve Cantwell - (UFC, WEC, Jungle Fight)
- Bruno Cappelozza - (PFL)
- Frank Caraballo - (Bellator)
- Bryan Caraway - (UFC, WEC, Strikeforce, EliteXC)
- Phil Cardella - (WEC)
- Chris Cariaso - (UFC, WEC, Strikeforce, ShoXC)
- Steve Carl - (M-1, Bellator, WSOF)
- Antônio Carlos Júnior - (UFC, PFL)
- Spike Carlyle - (UFC, LFA, Bellator, Rizin)
- Francis Carmont - (KSW, UFC)
- Roan Carneiro - (UFC, Shooto, DEEP)
- Tim Carpenter - (Bellator)
- Shonie Carter - (UFC, WEC, Pancrase, Shooto, Bellator, KOTC, MFC, KSW, M-1)
- Antonio Carvalho - (UFC, Shooto, MFC)
Pedro Carvalho - (PFL, Bellator)- Rafael Carvalho - (Bellator)
- Shane Carwin - (UFC, WEC)
- Johnny Case - (RFA, UFC)
- Cortney Casey - (UFC)
- Kevin Casey - (UFC, Strikeforce, RFA, K-1 Hero's, Bellator)
- Lester Caslow - (Bellator, Cage Fury)
- Bendy Casimir - (M-1, Shooto, WEC, Cage Rage, CWFC)
- John Castañeda - (UFC)
- Danny Castillo - (UFC, WEC, PFC)
- Gil Castillo - (WEC, KOTC, UFC)
- Raul Castillo - (Strikeforce)
- Tim Catalfo - (PRIDE, KOTC)
- Nick Catone - (UFC)
- Luke Caudillo - (UFC, Strikeforce)
- Gesias Cavalcante - (K-1 Hero's, Shooto, DREAM, Cage Rage, CWFC, Strikeforce, WSOF)
- Rafael Cavalcante - (UFC, Strikeforce, EliteXC, IFL)
- Magnus Cedenblad - (UFC)
- Yosdenis Cedeno - (UFC)
- Henry Cejudo - (LFA, UFC)
- Donald Cerrone - (WEC, UFC)
- Julio Cesar - (KSW, Bellator)
- Luan Chagas - (UFC)
- Jason Chambers - (DEEP)
- Michael Chandler - (Strikeforce, Bellator, UFC)
- Dan Charles - (Bellator)
- Joe Charles - (Pancrase, UFC)
- Danny Chavez - (UFC)
- Ernest Chavez - (UFC)
- Rick Cheek - (PFC)
- Fabio Cherant - (UFC, LFA)
- Michael Chiesa - (UFC)
- Giga Chikadze - (UFC)
- Khamzat Chimaev - (UFC)
- Sako Chivitchian - (UFC)
- Doo Ho Choi - (M-1, Sengoku, DEEP, UFC)
- Hong Man Choi - (DREAM, K-1, K-1 Hero's)
- Mu Bae Choi - (PRIDE, Sengoku, K-1 Hero's, Pancrase)
- Choi Seung-woo - (UFC)
- John Cholish - (UFC, Strikeforce)
- Ryo Chonan - (DEEP, Pancrase, Sengoku, DREAM, PRIDE, UFC)
- Joachim Christensen - (UFC, M1 Challenge)
- Dan Christison - (IFL, KOTC, WEC, UFC)
Branko Cikatić - (PRIDE)
Misha Cirkunov - (UFC)- Johnny Cisneros - (Bellator, KOTC)
- Devin Clark - (UFC, RFA)
- LaVerne Clark - (UFC, RINGS, Pancrase, WFA, DEEP, KOTC, MFC)
- Logan Clark - (UFC, WEC, Sengoku)
- Mitch Clarke - (UFC, KOTC)
- Tywan Claxton - (Bellator)
- Rich Clementi - (UFC, Bellator, DREAM, K-1 Hero's, Adrenaline MMA, Titan FC)
- Chris Clements - (UFC)
- Scott Cleve - (Bellator)
- Dakota Cochrane - (Adrenaline MMA, Titan FC)
- Felipe Colares - (UFC, Jungle Fight)
- Devin Cole - (Strikeforce, IFL, PFC, WSOF)
- Mark Coleman - (PRIDE, UFC)
- Clay Collard - (PFL, UFC)
- Jake Collier - (UFC, RFA)
- Vuyisile Colossa - (OneFC)
- Carlos Condit - (KOTC, UFC, WEC, Pancrase)
- Alex Cook - (Pancrase, VTJ, Shooto)
- T. J. Cook - (Strikeforce)
- Brett Cooper - (Bellator, Affliction, Jungle Fight, IFL, Shooto)
- Dewey Cooper - (Strikeforce, PFC)
- Ray Cooper III - (PFL)
- Chris Cope - (UFC, Strikeforce)
- Kit Cope - (UFC, WEC, WFA)
- Akira Corassani - (UFC, Shooto)
- Henry Corrales - (Bellator, KOTC)
- Mike Corey - (Bellator, IFL, KOTC, WSOF)
- Daniel Cormier - (KOTC, Strikeforce, UFC)
- Wesley Correira - (RINGS, EliteXC, UFC, WEC)
- Paulo Costa - (UFC, Jungle Fight)
- Randy Costa - (UFC)
- Patrick Côté - (KOTC, MFC, UFC)
- Rashad Coulter - (UFC, Bellator, LFA)
- Randy Couture - (UFC, VTJ, RINGS)
- Ryan Couture - (UFC, Strikeforce, Bellator)
- Colby Covington - (UFC)
- Nathan Coy - (Strikeforce, MFC, Bellator)
- Andrew Craig - (UFC, Bellator)
Paul Craig - (UFC, BAMMA)- Dan Cramer - (UFC, Bellator)
- Alberto Crane - (KOTC, UFC)
- Tim Credeur - (UFC, KOTC)
- Paul Creighton - (UFC)
- Kevin Croom - (LFA, Titan FC, Bellator, UFC)
- Allen Crowder - (UFC)
- Daron Cruickshank - (UFC, KOTC)
- Richard Crunkilton - (UFC, WEC)
- Kyle Crutchmer - (Bellator)
- Jimmy Crute - (UFC)
- Dominick Cruz - (UFC, WEC)
- Márcio Cruz - (Sengoku, IFL, UFC)
- Joshua Culibao - (UFC)
- Abel Cullum - (KOTC, ShoXC, DREAM)
- Zak Cummings - (UFC, MFC, Bellator, Titan FC, Strikeforce)
- Patrick Cummins - (UFC)
- Luke Cummo - (UFC)
- João Cunha
- Jeff Curran - (IFL, KOTC, PRIDE, WEC, WFA, Bellator, UFC, Strikeforce)
- Pat Curran - (Bellator, Adrenaline MMA)
Ion Cuțelaba - (UFC)
D
edit- Alex da Silva Coelho - (UFC, Brave CF)
- Bruno Gustavo da Silva - (UFC)
- Genair da Silva - (Bellator)
- Henrique da Silva - (UFC)
- Nicolas Dalby - (UFC)
- Paul Daley - (UFC, Strikeforce, Bellator, Cage Rage, BAMMA, ShoXC, MFC, CWFC)
- Rodrigo Damm - (UFC, Strikeforce, Sengoku, Shooto)
- Jarjis Danho - (UFC)
- Raymond Daniels - (Strikeforce)
- Dillon Danis - (Bellator)
- Alexandre Dantas - (UFC)
- Eduardo Dantas - (Shooto, Bellator)
- Mac Danzig - (WEC, KOTC, PRIDE, UFC)
- Karen Darabedyan - (WEC)
- Beneil Dariush - (UFC)
- Viacheslav Datsik - (M-1)
- Brandon Davis - (UFC)
- Chris Davis - (Bellator, Adrenaline MMA, XFC)
- Joey Davis - (Bellator)
- Martin Day - (UFC)
- Hakeem Dawodu - (UFC)
- Chris Daukaus - (UFC)
- Kyle Daukaus - (UFC, CFFC)
- LC Davis - (WEC, Sengoku, Affliction, IFL, Adrenaline MMA, Bellator, Titan FC)
- Marcus Davis - (UFC, MFC, Bellator)
- Mike Davis - (UFC)
- Phil Davis - (PFC, UFC)
- Raphael Davis - (Bellator, M-1, IFL, Titan FC)
- Grant Dawson - (UFC)
- Jason Day - (UFC, KOTC, MFC)
Yorgan De Castro - (UFC, PFL)- Geraldo de Freitas - (UFC, Shooto)
- Phil De Fries - (UFC)
Omar de la Cruz - (Bellator, Sengoku)- Mark De La Rosa - (UFC)
- Chris de la Rocha - (UFC)
- Mike De La Torre - (UFC)
- Johil de Oliveira - (PRIDE, Cage Rage, Shooto, Jungle Fight)
- Reinier de Ridder - (OneFC, UFC)
- Jesse Delgado - (Bellator)
- Ante Delija - (PFL, Rizin)
- Shane Del Rosario - (UFC, Strikeforce, ShoXC, M-1, KOTC)
- Herb Dean - (KOTC, Cage Rage)
- Tom DeBlass - (Bellator, UFC)
- Ramon Dekkers - (K-1 Hero's)
- Rolando Delgado - (UFC, Bellator, Shooto)
- Roland Delorme - (UFC)
Jon Delos Reyes - (UFC)- Chris Dempsey - (UFC, Bellator)
- Nick Denis - (UFC, KOTC, Sengoku)
- Jason Dent - (UFC, KOTC)
- Roberto de Souza - (Rizin)
- Tony DeSouza - (UFC, Jungle Fight, WFA)
- Robelis Despaigne - (UFC, Titan FC)
- Cory Devela - (Strikeforce)
- Edwin Dewees - (KOTC, UFC, Affliction, MFC)
Alessio Di Chirico - (UFC)- Cyrille Diabaté - (PRIDE, Cage Rage, ShoXC, UFC, PFC, TPF, M-1, DEEP, RINGS)
- Ousmane Thomas Diagne - (Strikeforce)
- Marc Diakiese - (UFC, Bellator, BAMMA)
- Hacran Dias - (Jungle Fight, Pancrase, Shooto, M-1, UFC)
- Nate Diaz - (WEC, Strikeforce, UFC)
- Nick Diaz - (PRIDE, Shooto, DREAM, UFC, WEC, EliteXC, Strikeforce)
- Alessio Di Chirico - (IMMAF, UFC)
- Josh Diekmann - (WEC, Bellator)
- T.J. Dillashaw - (UFC, KOTC)
Rosen Dimitrov - (M-1, Shooto)- Rumen Dimitrov - (Shooto)
- Jhonata Diniz - (UFC)
- Russell Doane - (KOTC, TPF, UFC)
- Drew Dober - (Bellator, Titan FC, UFC)
- John Dodson - (UFC, KOTC)
- Joe Doerksen - (DEEP, IFL, WEC, KOTC, RINGS, Sengoku, UFC)
- C.B. Dollaway - (UFC, Rizin)
- Roman Dolidze - (UFC)
- Cody Donovan - (Bellator, UFC)
- Rafael dos Anjos - (UFC, Pancrase, Shooto)
- Anderson dos Santos - (UFC, Titan)
- Junior dos Santos - (UFC)
Cédric Doumbé - (Bellator, PFL)- David Douglas - (EliteXC, ShoXC, Strikeforce)
- Danny Downes - (UFC, WEC, KOTC)
- Jared Downing - (Bellator)
- Tomasz Drwal - (UFC)
- Robert Drysdale - (UFC)
- Joe Duarte - (Strikeforce, Bellator)
Joseph Duffy - (UFC, CWFC)- Todd Duffee - (UFC, SFL, Jungle Fight, DREAM)
- Islam Dulatov - (UFC, Brave)
- Kelly Dullanty - (UFC, KOTC)
- Jason DeLucia - (Pancrase, Cage Rage, UFC)
- Guy Delumeau - (Shooto, Pancrase, DEEP)
- Evan Dunham - (PFC, UFC)
- Dricus du Plessis - (EFC, KSW, UFC)
- Tom Duquesnoy - (BAMMA, UFC)
- Reuben Duran - (UFC, KOTC)
- Cody Durden - (UFC)
- Merab Dvalishvili - (UFC)
David Dvořák - (UFC)- Matt Dwyer - (UFC)
- Rolando Dy - (UFC, Brave)
E
edit- Marvin Eastman - (KOTC, MFC, UFC, WFA, Shooto)
- Mike Easton - (UFC)
- Brian Ebersole - (UFC, IFL, Shooto, KOTC, Strikeforce)
- Johnny Eblen - (Bellator)
- Mark Eddiva - (UFC)
- Frankie Edgar - (UFC)
- Carlos Eduardo - (Bellator, Shooto)
- Johnny Eduardo - (UFC, Bellator, Jungle Fight, Shooto, VTJ)
- Fabian Edwards - (Bellator)
- Justin Edwards - (UFC, Bellator)
- Leon Edwards - (UFC, BAMMA)
Yves Edwards - (KOTC, UFC, Shooto, WEC, PRIDE, EliteXC, Strikeforce, MFC, Bellator)- Justin Eilers - (UFC, WEC, EliteXC)
John-Olav Einemo - (UFC, Shooto, PRIDE)- Per Eklund - (M-1, Shooto, UFC)
- Darren Elkins - (UFC)
- Jake Ellenberger - (UFC, IFL, Bellator, M-1, KOTC)
- Tim Elliott - (UFC, Titan FC, RFA)
- Jason Ellis
- Ramazan Emeev - (UFC, M-1, ACB)
- Alexander Emelianenko - (M-1, PRIDE)
- Fedor Emelianenko - (PRIDE, RINGS, Affliction, Strikeforce, M-1, Bellator)
- Rob Emerson - (Pancrase, Shooto, UFC, KOTC, DEEP, TPF, Bellator)
- Jamall Emmers - (UFC)
- Josh Emmett - (UFC, KOTC)
- Oliver Enkamp - (UFC, Bellator)
Yasubey Enomoto - (M-1, KSW, Shooto)- Ian Entwistle - (UFC, Brave CF)
- Andy Enz - (UFC)
- Kleber Koike Erbst - (Rizin, KSW, DEEP)
- Steve Erceg - (UFC)
- Tom Erikson - (K-1 Hero's, PRIDE, VTJ)
- Julian Erosa - (UFC)
- Eric Esch - (Cage Rage, K-1, KOTC, PRIDE, PFC, KSW, YAMMA)
- Cole Escovedo - (WEC, IFL, PFC, Strikeforce, TPF, DREAM, UFC)
- Efrain Escudero - (UFC, TPF, Bellator)
- Juan Espino - (UFC)
- Jordan Espinosa - (UFC)
- Braulio Estima - (Titan FC)
- Terry Etim - (UFC, Bellator)
- Billy Evangelista - (Strikeforce, WEC, PFC)
- Doug Evans - (Bellator, ShoXC, UFC)
- Rashad Evans - (UFC)
- Dan Evensen - (UFC, Bellator)
- Movsar Evloev - (UFC)
- Andre Ewell - (UFC, LFA)
F
edit- Edward Faaloloto - (UFC, WEC, Pancrase)
- Urijah Faber - (KOTC, WEC, UFC)
- Wagnney Fabiano - (IFL, WEC, Bellator)
- Bartosz Fabiński - (UFC, KSW)
- Rinat Fakhretdinov - (UFC)
- Maiquel Falcão - (UFC, Bellator, KSW)
- Gustavo Falciroli - (Shooto, OneFC)
- Brodie Farber - (UFC)
- Mahmoud Fawzy - (Bellator, PFL, Brave CF)
- Paul Felder - (UFC)
- Carlos Felipe - (UFC, ACB)
- Kevin "Kimbo Slice" Ferguson (†) - (CFFC, EliteXC, UFC)
- Tony Ferguson - (UFC)
- Bibiano Fernandes - (Jungle Fight, KOTC, K-1 Hero's, DREAM, OneFC)
- Alexandre Ferreira - (UFC, IFL, Jungle Fight, RINGS)
- Carlos Diego Ferreira - (Legacy, UFC)
- Cezar Ferreira - (UFC)
- Renan Ferreira - (PFL)
- Scott Ferrozzo - (UFC)
- André Fialho - (UFC)
- Drew Fickett - (KOTC, UFC, Cage Rage, Strikeforce, MFC, DREAM, XFC)
- Deiveson Figueiredo - (UFC, Jungle Fight)
- Francisco Figueiredo - (UFC, Jungle Fight)
- Edwin Figueroa - (UFC)
- Paulo Filho - (DEEP, Pancrase, PRIDE, DREAM, WEC, WSOF)
- Andre Fili - (UFC, KOTC, TPF)
- Mirko "Cro Cop" Filipović - (PRIDE, UFC, DREAM, Rizin, Bellator)
- Perry Filkins - (Bellator)
- Luigi Fioravanti - (UFC, MFC, M-1 Global)
- Luiz Firmino - (DREAM, M-1 Global, PRIDE, Shooto, WSOF)
- Jason Fischer - (Bellator)
- Spencer Fisher - (UFC)
- Chris Fishgold - (UFC, CWFC, BAMMA)
- Jon Fitch - (Shooto, UFC, WSOF)
Rafael Fiziev - (UFC)- Colin Fletcher - (UFC, BAMMA)
- Kenny Florian - (UFC)
- Caros Fodor - (KOTC, Strikeforce, UFC, OneFC)
- Eduard Folayang - (URCC, OneFC)
- Jesse Forbes - (UFC, WEC, MFC)
- Ryan Ford - (MFC, Bellator, WSOF)
- Jussier Formiga - (Shooto, TPF, UFC)
- Renee Forte - (UFC, Jungle Fight, Shooto)
- Marcel Fortuna - (UFC, Titan FC)
- Brian Foster - (UFC, CWFC, Titan FC)
- Kenny Foster - (Bellator)
- Hermes França - (K-1 Hero's, Shooto, UFC, WEC, MFC)
- Kai Kara-France - (UFC)
- John Franchi - (IFL, WEC)
- Rich Franklin - (UFC, WFA)
- Matt Frevola - (UFC)
- Justin Frazier - (UFC, Bellator)
- Zane Frazier - (UFC, Shooto, RINGS, KOTC, WEC)
- Ian Freeman - (Cage Rage, CWFC, M-1, Pancrase, UFC)
- Willamy Freire - (UFC, Shooto, DREAM, VTJ)
- Clay French - (KOTC, Sengoku, PRIDE, Adrenaline MMA, Titan FC, XFC)
- Don Frye - (K-1, K-1 Hero's, PRIDE, KOTC, UFC, DEEP)
- Tony Fryklund - (UFC, WEC, Strikeforce, Cage Rage, Titan FC, Bellator)
- Yutaka Fuji - (Shooto)
- Katsuhisa Fujii - (Shooto, UFC, Pancrase, DEEP, RINGS, PRIDE, M-1)
- Mitsuo Fujikura - (Shooto)
- Kazuyuki Fujita - (K-1, PRIDE, Sengoku)
- Yoshihiro Fujita - (Shooto)
- Yuji Fujita - (Shooto)
- Keisuke Fujiwara - (DREAM, Shooto)
- Masato Fujiwara - (Shooto)
- Riki Fukuda - (DEEP, EliteXC, DREAM, K-1 UFC)
- Satoshi Fukuoka - (Shooto)
- Travis Fulton (†) - (UFC, WEC, KOTC, IFL, Pancrase, RINGS)
- Masakatsu Funaki - (Pancrase, K-1 Hero's, DREAM, RINGS)
- Ricardo Funch - (UFC)
- Ricardo Fyeet - (RINGS)
G
edit- Justin Gaethje - (UFC, WSOF)
- Marat Gafurov - (ONE, ACB, M-1)
- Mitch Gagnon - (UFC)
- Zelg Galešić - (Cage Rage, PRIDE, DREAM, Bellator, SFL, K-1 Hero's)
- Vener Galiev - (M-1)
- Mickey Gall - (UFC)
- André Galvão - (Strikeforce, DREAM)
- Marcos Galvão - (Shooto, Jungle Fight, WEC, Bellator)
- Mauro Galvão - (Shooto, Jungle Fight)
- Manny Gamburyan - (UFC, WEC, KOTC)
- Mateusz Gamrot - (UFC)
- Shamil Gamzatov - (UFC, PFL, WSOF, ACB)
- Ciryl Gane - (UFC)
- Luiz Eduardo Garagorri - (UFC)
- Alex Garcia - (UFC)
- Edgar Garcia - (WEC, UFC, Bellator, TPF)
- Leonard Garcia - (UFC, WEC)
- Rafa García - (UFC)
- Steve Garcia - (Bellator, UFC)
- Cody Garbrandt - (UFC)
- Pablo Garza - (KOTC, WEC, UFC)
- Brian Gassaway (†) - (Bellator, WEC, KOTC, Shooto, Pancrase)
- Kelvin Gastelum - (UFC)
- Willie Gates - (UFC, Bellator, KOTC)
- Louis Gaudinot - (UFC)
- Chad George - (WEC, TPF)
- Kamen Georgiev - (Shooto)
- Hesdy Gerges - (Bellator)
- Tiki Ghosn - (WEC, UFC, WFA, KOTC, Strikeforce)
- Christos Giagos - (UFC, ACB)
- Cody Gibson - (UFC, TPF)
- Lance Gibson - (UFC, Shooto)
- Trevin Giles - (UFC)
- Gregor Gillespie - (UFC)
- Bob Gilstrap - (UFC)
- Brandon Girtz - (Bellator)
- Ricky Glenn - (UFC)
- Krzysztof Głowacki - (KSW)
- Konstantin Gluhov - (K-1, M-1, KSW, Pancrase)
- Massaro Glunder
- Rodney Glunder - (RINGS, PRIDE, Cage Rage, M-1, KSW, AOW)
- Mark Godbeer - (BAMMA, UFC)
- Allan Goes - (IFL, Pancrase, PRIDE, UFC)
- Bakouri Gogitidze - (RINGS)
- Bryan Goldsby - (Bellator, Adrenaline MMA, Titan FC, PFC)
- Marcelo Golm - (UFC, PFL, Bellator)
- Denis Goltsov - (PFL)
- Sergey Golyaev - (M-1, Shooto, Sengoku)
- Anthony Gomez - (Bellator)
- Frank Gomez - (WEC)
Mikey Gomez - (EliteXC, XFC, Bellator)- Ulysses Gomez - (UFC, Bellator, TPF, PFC)
- Takanori Gomi - (PRIDE, Shooto, VTJ, Sengoku, UFC)
- Evgeniy Goncharov - (ACB)
- Akihiro Gono - (DEEP, Pancrase, PRIDE, Shooto, UFC, Sengoku, Bellator)
- Chris Gonzalez - (Bellator)
- Gabriel Gonzaga - (Shooto, Jungle Fight, UFC)
- Fernando Gonzalez - (WEC, KOTC, Strikeforce, Bellator)
- Jason Gonzalez - (UFC)
- Lyman Good - (IFL, CFFC, Bellator, UFC)
- Jared Gooden - (UFC)
- Herbert Goodman - (Bellator, M-1, KOTC)
- Gary Goodridge - (K-1, K-1 Hero's, PRIDE, Affliction, UFC)
- Gerard Gordeau - (UFC, VTJ)
- Eddie Gordon - (UFC)
- Jared Gordon - (CFFC, UFC)
- Malcolm Gordon - (UFC, Bellator)
Themba Gorimbo - (UFC)- Chase Gormley - (UFC, Bellator, XFC, MFC, KOTC, ACB)
- Jonathan Goulet - (KOTC, UFC)
- Thibault Gouti - (UFC, Bellator)
- Wilson Gouveia - (UFC, MFC, KOTC)
Haim Gozali - (Bellator, Jungle Fight)- Damian Grabowski - (Bellator, M-1, UFC)
- Daniel Gracie - (Bellator, PRIDE)
- Kron Gracie - (UFC)
- Neiman Gracie - (WSOF, Bellator)
- Ralek Gracie - (DREAM, K-1 Hero's)
- Renzo Gracie - (PRIDE, RINGS, K-1, IFL, EliteXC, UFC)
- Rickson Gracie - (PRIDE, VTJ)
- Rodrigo Gracie - (PRIDE, K-1 Hero's)
- Roger Gracie - (Sengoku, Strikeforce, UFC, OneFC)
- Rolles Gracie - (IFL, AOW, UFC, OneFC, WSOF)
- Royce Gracie - (K-1, K-1 Hero's, PRIDE, UFC)
- Royler Gracie - (VTJ, PRIDE, K-1 Hero's)
- Ryan Gracie - (PRIDE)
- Peter Graham - (Sengoku, AOW, Bellator, KSW)
- Davey Grant - (UFC)
- Dwight Grant - (UFC, Bellator)
- T. J. Grant - (KOTC, UFC)
- Tony Gravely - (UFC, LFA, CFFC)
- Michael Graves - (UFC, Titan FC)
- Sergej Grecicho - (Bellator, Shooto, K-1 Hero's, CWFC, KSW)
- Sam Greco - (K-1, K-1 Hero's)
- Bobby Green - (Strikeforce, Affliction, KOTC, TPF, UFC)
- Desmond Green - (Bellator, Titan FC, UFC)
- Gabriel Green - (UFC)
- Maurice Greene - (UFC, PFL, LFA)
- Matt Grice - (UFC)
- Forrest Griffin - (KOTC, UFC)
- Jordan Griffin - (UFC, LFA, KOTC)
- Max Griffin - (UFC)
- Maxim Grishin - (UFC, PFL)
- Tyson Griffin - (Strikeforce, UFC, WSOF)
- Chad Griggs - (UFC, Strikeforce, IFL)
- Josh Grispi - (WEC, UFC)
- Kendall Grove - (KOTC, UFC, KSW, Bellator)
- Neil Grove - (Bellator, Cage Rage, UFC, SFL)
- Chris Gruetzemacher - (WSOF, Strikeforce)
- Mike Grundy - (UFC, ACB, BAMMA)
- Fabrício Guerreiro - (Bellator)
- Shannon Gugerty - (UFC)
- Clay Guida - (KOTC, Shooto, WEC, UFC, Strikeforce)
- Jason Guida - (ShoXC, Adrenaline MMA, WEC, KSW, Bellator)
- Melvin Guillard - (UFC, WSOF, Bellator)
- Marcelo Guimarães - (UFC, Jungle Fight)
- John Gunderson - (IFL, UFC, PFC, TPF, WSOF)
- Fabio Gurgel - (UFC)
- Jorge Gurgel - (KOTC, UFC, Strikeforce, Titan FC)
- Bogdan Guskov - (UFC, Brave CF)
- Alexander Gustafsson - (UFC, KSW, Shooto)
- Chris Gutiérrez - (UFC)
- Mike Guymon - (UFC, KOTC, Bellator)
H
edit- Keith Hackney - (UFC)
- Damir Hadzovic - (UFC, CWFC)
- Jake Hager - (Bellator)
- Tim Hague (†) - (KOTC, UFC, MFC, WSOF)
- Rich Hale - (Bellator)
- Mark Hall - (UFC)
- Ryan Hall - (UFC)
- Uriah Hall - (UFC, Bellator)
- Dennis Hallman - (UFC, Strikeforce, MFC, Shooto, WFA, IFL, KOTC, WSOF, Titan FC)
- Piotr Hallmann - (UFC, CWFC)
- Tony Halme - (UFC, RINGS)
- Brandon Halsey - (Bellator, KOTC)
- Kazuhiro Hamanaka - (Pancrase, M-1, IFL, K-1 Hero's, PRIDE)
- Matt Hamill - (UFC, WSOF)
- Anthony Hamilton - (MFC, UFC)
- Anthony Hamlett - (WEC, Shooto)
- Jared Hamman - (WSOF, UFC, ShoXC, Strikeforce)
- Volk Han - (RINGS)
- Joachim Hansen - (Shooto, DEEP, K-1 Hero's, PRIDE, DREAM)
- Antoni Hardonk - (RINGS, K-1, UFC)
- Dan Hardy - (CWFC, KOTC, UFC)
- Greg Hardy - (UFC)
Carlston Harris - (UFC)- Gerald Harris - (UFC, DREAM, TPF, Titan FC, WSOF)
- Dhafir Harris (Bellator)
- Phil Harris - (Cage Rage, BAMMA, UFC, CWFC)
- Walt Harris - (UFC, Titan FC)
- Dale Hartt - (UFC)
- Clay Harvison - (UFC, Bellator)
- Nasrat Haqparast - (UFC)
- Lee Hasdell - (RINGS, Cage Rage)
- Carlton Haselrig - (EliteXC)
- Chris Haseman - (UFC, RINGS, WFA)
- Hayder Hassan - (UFC, M-1, Brave CF, Strikeforce)
- Daiki Hata - (Pancrase, DEEP, DREAM)
- John Hathaway - (UFC, Cage Rage)
- Phil Hawes - (UFC)
- Rick Hawn - (Bellator)
- Tomoaki Hayama - (Shooto)
- Mike Hayes - (Strikeforce, PFC, CWFC, Bellator, KSW)
- Josh Haynes - (UFC, IFL)
- Dustin Hazelett - (KOTC, UFC)
- James Head - (UFC)
- Pat Healy - (KOTC, MFC, WEC, Titan FC, IFL, Strikeforce, UFC)
- Ryan Healy - (WEC, Strikeforce, KOTC, MFC, SFL)
- David Heath - (KOTC, MFC, UFC)
- Jake Hecht - (UFC, CWFC)
Alateng Heili - (UFC)- Nick Hein - (UFC)
- Ian Heinisch - (UFC, LFA)
- Marcin Held - (Bellator, Shooto, UFC)
- Benson Henderson - (MFC, WEC, UFC, Bellator)
- Dan Henderson - (RINGS, PRIDE, UFC, Strikeforce)
- Johny Hendricks - (WEC, UFC)
- Luis Henrique - (UFC, Shooto)
- Danny Henry - (UFC)
- Victor Henry - (UFC)
- Jai Herbert - (UFC)
- Dave Herman - (UFC, Bellator, EliteXC, Sengoku, ShoXC, Titan FC)
- Ed Herman - (Pancrase, UFC, Strikeforce)
- Jack Hermansson - (UFC, Bellator, CWFC)
- Alexander Hernandez - (UFC)
- Anthony Hernandez - (UFC)
- Álvaro Herrera - (UFC)
- Geane Herrera - (UFC, RFA)
- Heath Herring - (K-1 Hero's, PRIDE, UFC)
- Tony Hervey - (Bellator, KOTC, BAMMA, Shooto)
- Jared Hess - (Bellator)
- Jon Hess - (UFC)
- Clint Hester - (UFC)
- Jimy Hettes - (UFC)
- Conor Heun - (IFL, EliteXC, ShoXC, Strikeforce)
- Marcus Hicks - (WEC)
- Jay Hieron - (Bellator, WEC, IFL, Affliction, Strikeforce, UFC, Titan FC)
- Jason High - (UFC, Strikeforce, Affliction, DREAM, Titan FC)
- Leandro Higo - (Bellator, LFA, Jungle)
- Corey Hill - (UFC, XFC, TPF)
- Jamahal Hill - (UFC)
- Josh Hill - (Bellator, WSOF)
- Branden Lee Hinkle - (UFC, RINGS, IVC, Pancrase, VTJ)
- Hatsu Hioki - (Shooto, PRIDE, Sengoku, UFC, Rizin)
- Ren Hiramoto - (Rizin)
- Kuniyoshi Hironaka - (Pancrase, VTJ, DREAM, UFC, Shooto)
- Mizuto Hirota - (Shooto, Sengoku, Strikeforce, UFC)
- Matt Hobar - (UFC)
- Bobby Hoffman - (KOTC, RINGS, UFC, Jungle Fight)
- Sam Hoger - (UFC, IFL)
- Josh Hokit - (Bellator)
- Andrew Holbrook - (UFC)
- Mark Holata - (Bellator)
- Chris Holdsworth - (UFC)
- Kevin Holland - (UFC)
- Roger Hollett - (MFC, Bellator, UFC)
- Max Holloway - (UFC)
- Patrick Holohan - (Pancrase, Cage Contender, UFC)
- Scott Holtzman - (UFC, XFC)
- Sabah Homasi - (Bellator, UFC, Titan FC, Strikeforce)
- Mark Hominick - (UFC, Affliction, WEC)
- Chris Honeycutt - (Bellator, ACB)
- Satoshi Honma - (PRIDE, UFC, Shooto, K-1)
- Chase Hooper - (UFC)
- Darrell Horcher - (Bellator, UFC)
- Kyoji Horiguchi - (Shooto, VTJ, UFC, Rizin)
- Jeremy Horn - (IFL, KOTC, Pancrase, PRIDE, UFC, WEC, RINGS, Adrenaline MMA, Bellator)
- Dan Hornbuckle - (Sengoku, Bellator, DEEP, Titan FC)
- Chris Horodecki - (Bellator, WEC, IFL)
- Matt Horwich - (UFC, Strikeforce, Bellator, IFL, BAMMA, KSW)
- Jeff Hougland - (UFC, WEC)
- Harold Howard - (UFC)
- John Howard - (UFC, IFL)
- Robert Howard
- Tom Howard - (Cage Rage, IFL, K-1)
- Shane Howell - (Bellator, KOTC, UFC)
- Austin Hubbard - (UFC)
- Roger Huerta - (UFC, Bellator, OneFC)
- Jeff Hughes - (UFC, LFA)
- Mark Hughes - (UFC)
- Matt Hughes - (UFC, Shooto, RINGS)
- Paul Hughes - (PFL, Bellator, BAMMA, CWFC)
- Matt Hume - (Pancrase)
- Mark Hunt - (PRIDE, DREAM, UFC)
- Solomon Hutcherson - (UFC, MFC)
I
edit- Al Iaquinta - (UFC)
- Khadis Ibragimov - (UFC, M-1)
- Dan Ige - (UFC)
- Alexey Ignashov - (K-1)
- Fabiano Iha - (KOTC, PRIDE, UFC)
- Hisao Ikeda - (Shooto)
- Seichi Ikemoto - (DEEP, DREAM, PRIDE, Shooto)
- Junji Ikoma - (Shooto)
- Mikhail Ilyukhin - (PRIDE, RINGS, K-1 Hero's)
- Toby Imada - (WEC, KOTC, Bellator)
- Masakazu Imanari - (Pancrase, PRIDE, Cage Rage, DREAM, DEEP, OneFC)
- Zelim Imadaev - (UFC)
- Nassourdine Imavov - (UFC)
- Brad Imes - (UFC, WEC, IFL, KOTC, Titan FC, PFC)
- Guto Inocente - (Shooto, Strikeforce, UFC)
- Egan Inoue - (Shooto, RINGS, PRIDE)
- Enson Inoue - (PRIDE, VTJ, Shooto, UFC)
- Naoki Inoue - (DEEP, UFC)
- Takeshi Inoue - (Shooto, DREAM, VTJ)
- James Irvin - (Strikeforce, WEC, UFC, TPF, KSW)
- Ali Isaev - (Bellator)
- Mitsuhiro Ishida - (PRIDE, DREAM, Strikeforce, Shooto, DEEP)
- Teruto Ishihara - (UFC, Shooto)
- Satoshi Ishii - (K-1, DREAM, Sengoku)
- Yoshimasa Ishikawa - (Shooto)
- Shintaro Ishiwatari - (Shooto, Pancrase, Sengoku, VTJ)
- Takashi Ishizaki - (Shooto)
- Tokimitsu Ishizawa - (DREAM, K-1 Hero's, PRIDE)
- Wallid Ismail - (PRIDE, UFC)
- Damir Ismagulov - (UFC, M-1)
- Leandro Issa - (OneFC, UFC)
- Junji Ito - (Shooto)
- Takenori Ito - (Shooto)
- Yuji Ito - (Shooto)
- Blagoy Ivanov - (Sengoku, Bellator, WSOF)
- Hiroshi Izumi - (Sengoku, DREAM)
J
edit
Yves Jabouin - (WEC, UFC)- Damon Jackson - (UFC, Bellator, KOTC, Legacy)
- Eugene Jackson - (UFC, Strikeforce)
- Jason Jackson - (Bellator, PFL, Titan FC)
- Jeremy Jackson - (KOTC, UFC)
- Kevin Jackson - (UFC)
- Mike Jackson - (UFC)
- Montel Jackson - (UFC)
- Quinton Jackson - (KOTC, PRIDE, UFC, WFA, Bellator)
- Dustin Jacoby - (UFC, WSOF, Titan FC, Bellator)
- Daniel James - (PFL)
- Ryan Janes - (UFC)
- Keith Jardine - (KOTC, MFC, Pancrase, UFC, Strikeforce)
- Antoine Jaoude - (K-1, IFL)
- Damian Janikowski - (KSW)
- Dave Jansen - (Bellator, WEC, M-1)
- Justin Jaynes - (UFC, Bellator)
- Bubba Jenkins - (TPF, Bellator, ACB)
- Trent Jenkins - (RINGS, UFC)
- Steve Jennum - (UFC)
- Ryan Jensen - (UFC, Strikeforce, Bellator)
- Maciej Jewtuszko - (UFC, WEC, KSW)
- Ronald Jhun - (Shooto, Strikeforce, UFC, WFA, KOTC)
- Art Jimmerson - (UFC)
- Ryan Jimmo - (MFC, UFC)
- Brett Johns - (CWFC, Titan FC, UFC)
- Miles Johns - (UFC)
- Anthony Johnson (†) - (UFC, WSOF, Titan FC)
- Charles Johnson - (UFC, LFA)
- DaMarques Johnson - (UFC, KOTC)
- Dashon Johnson - (UFC)
- Demetrious Johnson - (OneFC, UFC, WEC, KOTC)
- Jordan Johnson - (UFC, RFA)
- Kajan Johnson - (UFC, MFC, KOTC)
- Lavar Johnson - (Bellator, UFC, WEC, Strikeforce, PFC)
- Michael Johnson - (UFC, Titan FC)
- Timothy Johnson - (UFC, Bellator)
- Tony Johnson - (Bellator, KOTC, ONE, ACB)
- Wesley Johnson - (Cage Rage)
- Brian Johnston - (UFC, Strikeforce)
- Jon Jones - (UFC)
- Marcus Jones - (UFC)
- Mason Jones - (UFC, CWFC)
- Nathan Jones - (PRIDE)
- Paul Jones - (UFC, Shooto)
- Phoenix Jones - (WSOF)
- Trevin Jones - (UFC, ACB)
- Kevin Jordan - (UFC, Strikeforce)
- Shawn Jordan - (UFC, Strikeforce, Bellator, WEC)
- Ivan Jorge - (UFC, Jungle Fight, M-1, Shooto)
- Scott Jorgensen - (UFC, WEC, ShoXC)
- Krzysztof Jotko - (UFC, PFL)
- Alan Jouban - (UFC, TPF, RFA)
- Charles Jourdain - (UFC)
- Kevin Jousset - (UFC)
- Jesse Juarez - (Bellator, Strikeforce, MFC)
Anshul Jubli - (MFN, UFC)- Luke Jumeau - (UFC)
- Bu Kyung Jung - (DREAM, DEEP)
- Da Woon Jung - (UFC)
- Chan Sung Jung - (UFC, WEC, Sengoku, DEEP, Pancrase)
- Myles Jury - (Shooto, KOTC, UFC)
K
edit- Hideki Kadowaki - (Shooto, Sengoku, DEEP)
- Mahamedkhabib Kadzimahamedau - (Bellator)
- Movlid Khaybulaev - (ONE, PFL)
- Tang Kai - (ONE)
Baruto Kaito - (Rizin)- Takahiro Kajita - (Pancrase, Shooto, DEEP)
- Kai Kamaka III - (PFL)
- Martin Kampmann - (UFC, WFA, KOTC, CWFC)
- Oumar Kane - (ONE)
- Masanori Kanehara - (K-1, K-1 Hero's, Shooto, Pancrase, Sengoku, DEEP, UFC)
- Denis Kang - (PRIDE, Pancrase, K-1, M-1, UFC, DREAM)
- Hiroyuki Kanno - (Shooto)
- Kyung Ho Kang - (UFC, DEEP, Sengoku)
Manel Kape - (Rizin, UFC)- Georgi Karakhanyan - (WSOF, DREAM, Bellator, BAMMA, KOTC, TPF)
- Alex Karalexis - (WEC, UFC)
- Impa Kasanganay - (PFL, UFC)
- Dawid Kasperski - (KSW)
- Joop Kasteel - (RINGS)
- Calvin Kattar - (UFC, EliteXC)
- Hisaki Kato - (Bellator, Rizin)
- Tetsuji Kato - (Shooto, VTJ, DEEP, Strikeforce)
- Brad Katona - (UFC)
- Yukio Kawabe - (PRIDE, Pancrase)
- Kenji Kawaguchi - (Shooto)
- Yusuke Kawaguchi - (M-1, DEEP, DREAM, KSW)
- Namiki Kawahara - (ONE, Rizin, DEEP, Pancrase)
- Tatsuya Kawajiri - (PRIDE, Shooto, Strikeforce, DREAM, UFC)
- Ryo Kawamura - (Pancrase, Sengoku, OneFC)
- Saburo Kawakatsu - (Shooto)
- Chris Kelades - (Bellator, UFC)
- Benjamin Kelleher
- Brian Kelleher - (UFC)
- Tony Kelley - (UFC)
- Dan Kelly - (UFC)
- Daniel Kelly - (UFC)
- Paul Kelly - (UFC, SFL, CWFC)
- Song Kenan - (UFC)
- Jeremy Kennedy - (UFC, Bellator)
- Tim Kennedy - (WEC, IFL, Strikeforce, UFC)
- Casey Kenney - (UFC)
- Azamat Kerefov - (ACB)
- Mark Kerr - (UFC, PRIDE, IFL, Cage Rage, M-1, YAMMA)
- Will Kerr - (WEC)
- Ron Keslar - (Bellator)
- Rustam Khabilov - (UFC, OneFC, M-1)
- Mamed Khalidov - (Shooto, ShoXC, ACB, KSW, Sengoku)
- Sergey Khandozhko - (UFC, ACB)
- Sergei Kharitonov - (PRIDE, RINGS, K-1 Hero's, DREAM, Strikeforce, M-1, Bellator)
- Magomedrasul Khasbulaev - (Bellator, M-1, ACB)
- Ferrid Kheder - (Shooto, M-1, Bellator)
- Timur Khizriev - (Bellator, PFL)
- Akira Kibe - (DEEP, Shooto)
- Akira Kikuchi - (K-1 Hero's, Shooto)
- Katsunori Kikuno - (DEEP, DREAM, UFC)
- Sanae Kikuta - (VTJ, Pancrase, PRIDE, UFC, Sengoku, DEEP)
- Dong Hyun Kim - (DEEP, UFC)
- Dong Hyun Kim - (UFC)
- Jong Man Kim - (K-1 Hero's, Shooto, Sengoku, DEEP, M-1)
- Min Soo Kim - (K-1 Hero's)
- Jeremy Kimball - (UFC, RFA, Bellator)
- Rob Kimmons - (UFC, Shooto, WEC, Titan FC)
- Dustin Kimura - (UFC, KOTC)
- Koichiro Kimura - (VTJ)
- Taiei Kin - (K-1 Hero's, DREAM)
- Danny Kingad - (ONE)
- Kyle Kingsbury - (UFC, KOTC)
- Daichi Kitakata - (Rizin, Pancrase, DEEP)
- Koji Kitao - (PRIDE, UFC)
- Satoru Kitaoka - (Pancrase, Sengoku, DEEP, DREAM)
Ľudovít Klein - (UFC)- Drakkar Klose - (UFC)
- Kevin Knabjian - (Shooto, WEC, Bellator)
- Jason Knight - (Titan FC, UFC)
- William Knight - (UFC)
Fatih Kocamis - (M-1, PRIDE, RINGS)- Erik Koch - (WEC, UFC)
- Junya Kodo - (Shooto, DREAM, VTJ)
- Toru Koga - (Shooto)
- Brad Kohler - (UFC, RINGS, DEEP)
- Hiroyuki Kojima - (Shooto)
- Naoto Kojima - (Shooto)
- Shinichi Kojima - (Shooto, OneFC)
- Szymon Kołecki - (KSW)
- John Kolosci - (UFC, Strikeforce, Bellator, XFC)
- Yuki Kondo - (Pancrase, PRIDE, UFC, DEEP, Sengoku)
- Cheick Kongo - (UFC, Bellator, RINGS)
Kritsada Kongsrichai - (OneFC)- Masayuki Kono - (Pancrase)
- Tomonari Kanomata - (Pancrase, Shooto)
- Cole Konrad - (Bellator)
- Andrei Kopylov - (PRIDE, RINGS)
- Roman Kopylov - (UFC)
- Andrey Koreshkov - (Bellator)
- Tsuyoshi Kosaka - (RINGS, PRIDE, UFC, Pancrase, DEEP)
- Josh Koscheck - (UFC, Bellator)
- Hiroki Kotani - (Shooto)
- Naoyuki Kotani - (Pancrase, PRIDE, UFC)
- Steve Kozola - (Bellator, LFA, BAMMA, WSOF)
- Derrick Krantz - (UFC, Bellator, LFA)
- James Krause - (Bellator, WEC, Titan FC, UFC)
- Pascal Krauss - (UFC, CWFC, Shooto)
- Emil Kristev - (RINGS)
- Jörgen Kruth - (K-1, UFC)
- Nikita Krylov - (UFC, M-1)
- Yuta Kubo - (Rizin)
- Misaki Kubota - (Shooto)
- Alexei Kudin - (Bellator, M-1, Shooto)
- Michael Kuiper - (UFC, Titan FC)
- Anton Kuivanen - (UFC, K-1 Hero's, Shooto)
- Takasuke Kume - (Shooto, Pancrase, Rizin, ONE)
- Alexey Kunchenko - (UFC, PFL, M-1)
- Kiichi Kunimoto - (UFC, Pancrase)
- Kiuma Kunioku - (Sengoku, DEEP, Pancrase, K-1 Hero's)
- Ramazan Kuramagomedov - (Bellator, PFL, ACB)
- Masakazu Kuramochi - (DEEP, Pancrase, Shooto)
- Eldar Kurtanidze - (PRIDE)
- Kazuhiro Kusayanagi - (Shooto, VTJ)
- Takuya Kuwabara - (Shooto)
- Won-il Kwon - (ONE)
- Mike Kyle - (KOTC, WEC, UFC, Pancrase, Strikeforce, WSOF)
L
edit- Josh LaBerge - (Bellator, Strikeforce)
- Achmed Labasanov - (RINGS, PRIDE)
- Ryan LaFlare - (UFC)
- Noad Lahat - (UFC, Bellator, BAMMA)
- Tim Lajcik - (UFC, Pancrase, WFA, RINGS)