There is and over lap between the Combat sports of Boxing and Mixed martial arts fighters with professional records in both are listed below.
A edit
- Ben Askren 0–1
- Jose Aldo 1-0-1
B edit
- Ali Bagautinov 2–0
- Alan Belcher 5-0
- Vitor Belfort 2-0
- Randy Blake 2–1
- Arlene Blencowe 4–4
- Antwain Britt 1–0
- T.J. Brown 1–0
- Mikey Burnett 1–0
- Raphael Butler 35–12–0
C edit
- Donald Cerrone 0–1
- Jason Chambers 0–1
- LaVerne Clark 14–18–1
- Rich Clementi 0–1
- Clay Collard 9–2–3
- Carlos Condit 0–1
- Kit Cope 1–1
- Patrick Cote 0–1
- Rashad Coulter 1–0
- Jeff Curran 2–2–1
D edit
- Mac Danzig 0–1
- Marcus Davis 17–1–2
- Nate Diaz 0–1
- Nick Diaz 1–0
- Joe Duffy 7–0
E edit
- Marvin Eastman 1–0
- Yves Edwards 2–0
- Aleksander Emelianenko 1–1–1
- Eric "Butterbean" Esch 77–7–4
- Andre Ewell 0–4
F edit
- Ryan Ford 16–4
- Julius Francis 23–24–1
- Don Frye 2–5–1
G edit
- Leonard Garcia 0–1
- Peter Graham 11–4–1
- Melvin Guillard 0–1–1
H edit
- Uriah Hall 1-0
- Chevelle Hallback 27–5–2
- Dennis Hallman 1–3
- Greg Hardy 3-0
- Heather Hardy 22–1–1
- Clint Hester 3–3–1
- Marcus Hicks 5–4–1
- Holly Holm 33–2–3
- Mark Hunt 1–2–1
I edit
- Zelim Imadaev 0–1
J edit
- Dustin Jacoby 1–0–0
- Keith Jardine 3–0–1
- Qiu Jianliang 1–0
- Art Jimmerson 33–18–0
- Dashon Johnson 22–23–3
K edit
- Sergei Kharitonov 2–0
- Justine Kish 1–0
- Ava Knight 19–2–5
- Jörgen Kruth 1–0–0
- Mike Kyle 1–3–1
L edit
- Taylor Lapilus 1–0
- Jenel Lausa 10–0–1
- Jerome Le Banner 6–0–0
- Kathy Long 2–1
- Chris Lytle 13–1–1
M edit
- Jennifer Maia 3–0
- Fábio Maldonado 27–5
- Terry Martin 5–1–0
- Jorge Masvidal 1–0–0
- Ricardo Mayorga 32–12–1
- Court McGee 2–1–0
- Conor McGregor 0–1
- Tim Means 2–1
- Ray Mercer 36–7–1
- Guy Mezger 1–0–0
- Mighty Mo 2–1–0
- Pat Miletich 1–0–0
- Frank Mir 0–1
- Jeff Monson 2–1–1
- John Moraga 1–3
N edit
- Josh Neer 1–0
- Journey Newson 0–1–1
- Alex Nicholson 1–1
- Yōsuke Nishijima 24–2–1
- K. J. Noons 11–2–0
- Jan Nortje 11–0–0
- Francis Ngannou 0–2
Q edit
P edit
- Michael Page 2–0
- Dustin Pague 1–0
- John Wayne Parr 11–3
- Ross Pearson 1–0
- Luis Peña 0–2–1
- Alex Pereira 1–0
- Mike Perry 0-1
- Anthony Pettis 1-0
- Costas Philippou 3–0–0
R edit
- Jessica Rakoczy 33–3
- Elena Reid 19–6–6
- Nick Ring 5–1
- Angela Rivera-Parr 2–3
- Ricco Rodriguez 1–1–0
- Rick Roufus 13–5–1
S edit
- Alessio Sakara 8–1
- Darrill Schoonover 1–0–0
- Ray Sefo 5–1–0
- Amanda Serrano 40–1–1
- Eric Shelton 1–0
- Anderson Silva 3–2–0
- Antônio Silva 0-1
- Assuerio Silva 1–0
- Matt Skelton 25–6–0
- Kimbo Slice 7–0
- Maurice Smith 0–2–0
- Patrick Smith 5–10–2
- Roberto Soldić 4–0
- Tyrone Spong 14–0
- Ronaldo Souza 0-1
- Valentina Shevchenko 2–0
- Andreas Spång 0–0–1
- Mia St. John 46–11–2
- Cody Stamann 0–1
- Jeremy Stephens 0–1-1
T edit
- Din Thomas 1–0–1
- James Toney 77–10–3
- Erin Toughill 7–4–1 1NC
U edit
- Alexander Ustinov 36–5-0
V edit
- Rico Verhoeven 1–0
- James Vick 2–2
- Alexander Volkanovski 1–0
W edit
- James Warring 18–4–1
- Carter Williams 2–0–0
- Jeremy Williams 43–5–1
- Rubin Williams 29–14–1
- Tyron Woodley 0-2