| Athlete |
Nation(s) |
Sport(s) |
Role(s) |
Era |
Notes |
| Nicola Adams |
 GBR |
BOX |
Olympics |
2012—2016 |
Olympics - 2012 Flyweight (Gold) / 2016 Flyweight (Gold); Professional World Champion - WBO Flyweight (2019) |
| Murodzhon Akhmadaliyev |
 UZB |
BOX |
Olympics |
2016 |
Olympics - 2016 Bantamweight (Bronze); Professional World Champion - WBA Super-bantamweight (2020-2023); IBF Junior-featherweight (2020-2023). |
| Henry Akinwande |
GBR |
BOX |
Olympics |
1988 |
Olympics - 1988 Heavyweight; Professional World Champion - WBO Heavyweight (1996-1997). |
| Muhammad Ali |
GBR |
BOX |
Olympics / YOG |
2014—2016 |
Olympics - 2016 Flyweight; Professional World Champion - WBA Heavyweight (1964-1964); WBA Heavyweight (1967-1967). |
| Sadam Ali |
 USA |
BOX |
Olympics |
2008 |
Olympics - 2008 Lightweight; Professional World Champion - WBO Junior-middleweight (2017-2018). |
| Eléider Álvarez |
 COL |
BOX |
Olympics |
2008 |
Olympics - 2012 Light-heavyweight - Professional World Champion - WB0 light-heavyweight (2018-2019). |
| Paulus Ambunda |
 NAM |
BOX |
Olympics / Opening Flagbearer |
2004 |
Olympics - 2004 Flyweight; Professional World Champion - WBO Bantamweight (2013). |
| Demetrius Andrade |
USA |
BOX |
Olympics |
2008 |
Olympics - 2008 Welterweight; Professional World Champion - WBO Middleweight (2018-2022); WBO Junior-middleweight (2013-2015); WBA Super-welterweight (2017). |
| Bruno Arcari |
 ITA |
BOX |
Olympics |
1964 |
Olympics - 1964 Lightweight; Professional World Champion - WBC Super-lightweight (1970-1974). |
| McJoe Arroyo |
 PUR |
BOX |
Olympics |
2008 |
Olympics - 2008 Bantamweight; Professional World Champion - IBF Junior-bantamweight (2015-2016). |
| Brahim Asloum |
 FRA |
BOX |
Olympics |
2000 |
Olympics - 2000 Light-Flyweight (Gold); Professional World Champion - WBA Light-flyweight (2007-2008). |
| Tim Austin |
USA |
BOX |
Olympics |
1992 |
Olympics - 1992 Flyweight (Bronze); Professional World Champion - IBF Bantamweight (1997-2003). |
| Carlos Balderas |
USA |
BOX |
Olympics |
2016 |
Olympics - 2016 Lightweight; Professional World Champion - WBC Welterweight (2006). |
| Károly Balzsay |
 HUN |
BOX |
Olympics |
2000—2004 |
Olympics - 2000 Light-Middleweight; Professional World Champion - WBO Super-middleweight (2009); WBA Super-middleweight (2011-2012). |
| Carlos Barreto |
 VEN |
BOX |
Olympics |
1996 |
Olympics - 1996 Bantamweight; Professional World Champion - WBA Super-bantamweight (1998-1999). |
| Nino Benvenuti |
ITA |
BOX |
Olympics |
1960 |
Olympics - 1960 Welterweight (Gold); Professional World Champion - WBC Middleweight (1967-1967); WBC Middleweight (1968-1970); WBA Middleweight (1967-1967); WBA Middleweight (1968-1970); Undisputed Middleweight (1967-1967); Undisputed Middleweight (1968-1970). |
| Trevor Berbick |
 JAM |
BOX |
Olympics |
1976 |
Olympics - 1976 Heavyweight; Professional World Champion - WBC Heavyweight (1986). |
| Denys Berinchyk |
 UKR |
BOX |
Olympics |
2012 |
Olympics - 2012 Light-Welterweight (Silver); Professional World Champion - WBO Lightweight (2024-2025). |
| Andre Berto |
 HAI |
BOX |
Olympics |
2004 |
Olympics - 2004 Welterweight; Professional World Champion - WBC Welterweight (2008-2011); IBF Welterweight (2011). |
| Artur Beterbiyev |
 RUS |
BOX |
Olympics |
2008—2012 |
Olympics - 2008 Light-Heavyweight; Professional World Champion - WBO Light-heavyweight (2022-2025); WBA Light-heavyweight (2024-2025); WBC Light-heavyweight (2019-2025); IBF Light-heavyweight (2017-2025). |
| Markus Beyer |
 GER |
BOX |
Olympics |
1992—1996 |
Olympics - 1992 Light-Middleweight; Professional World Champion - WBC Super-middleweight (2003-2004); WBC Super-middleweight (2004-2006). |
| Sakio Bika Mbah |
 CMR |
BOX |
Olympics |
2000 |
Olympics - 2000 Light-Middleweight; Professional World Champion - WBC Super-middleweight (2013-2014). |
| Carmelo Bossi |
ITA |
BOX |
Olympics |
1960 |
Olympics - 1960 Light-Middleweight (Silver); Professional World Champion - Undisputed Super-welterweight (1970-1971). |
| Markus Bott |
 FRG |
BOX |
Olympics |
1984—1988 |
Olympics - 1984 / 1988 Light-heavyweight; Professional World Champion - WBO Cruiserweight (1993-1993). |
| Laurent Boudouani |
FRA |
BOX |
Olympics |
1988 |
Olympics - 1988 Welterweight (Silver); Professional World Champion - WBA Super-Welterweight (1996-1999). |
| Riddick Bowe |
USA |
BOX |
Olympics |
1988 |
Olympics - 1988 Heavyweight (Silver); Professional World Champion - IBF, WBA & WBC Heavyweight (1992-1992); IBF & WBA Heavyweight (1992-1993); WBO Heavyweight (1995-1996). |
| Johnny Bredahl |
 DEN |
BOX |
Olympics |
1988 |
Olympics - 1988 Flyweight; Professional World Champion - WBA Bantamweight (2002-2004); WBO Super-Flyweight (1992-1994). |
| Mark Breland |
USA |
BOX |
Olympics |
1984 |
Olympics - 1984 Welterweight (Gold); Professional World Champion - WBA Welterweight (1987-1987); WBA Welterweight (1989-1990). |
| Salvatore Burruni |
ITA |
BOX |
Olympics |
1956 |
Olympics - 1956 Flyweight; Professional World Champion - Undisputed Flyweight (1965-1966). |
| Byeon Jeong-Il |
 KOR |
BOX |
Olympics |
1988 |
Olympics - 1988 Bantamweight; Professional World Champion - WBC Bantamweight (1993-1993). |
| Chris Byrd |
USA |
BOX |
Olympics |
1992 |
Olympics - 1992 Middleweight (Silver); Professional World Champion - WBO Heavyweight (2000); IBF Heavyweight (2002-2006). |
| Iván Calderón |
PUR |
BOX |
Olympics |
2000 |
Olympics - 2000 Light-Flyweight; Professional World Champion - WBO Junior-flyweight (2007-2010); WBO Mini-flyweight (2003-2007). |
| Johnny Caldwell |
 IRL |
BOX |
Olympics |
1956 |
Olympics - 1956 Flyweight (Bronze); Professional World Champion - EBU Bantamweight (1961-1962). |
| Jackie Callura |
 CAN |
BOX |
Olympics |
1932 |
Olympics - 1932 Flyweight; Professional World Champion - NBA Featherweight (1943). |
| Michael Carbajal |
USA |
BOX |
Olympics |
1988 |
Olympics - 1988 Light-Flyweight (Silver); Professional World Champion - IBF Light-Flyweight (1990-1994); IBF Light-Flyweight (1996-1997); WBC Light-Flyweight (1993-1994); WBO Light-Flyweight (1994-1994); WBO Light-Flyweight (1999). |
| Prudencio Cardona |
COL |
BOX |
Olympics |
1972 |
Olympics - 1972 Light-flyweight; Professional World Champion - WBC Flyweight (1982-1982). |
| Jimmy Carruthers |
 AUS |
BOX |
Olympics |
1948 |
Olympics - 1948 Bantamweight; Professional World Champion - Undisputed Bantamweight (1952-1954). |
| Joel Casamayor |
 CUB |
BOX |
Olympics |
1992 |
Olympics - 1992 Bantamweight (Gold); Professional World Champion - WBA Super-featherweight (2000-2002); WBC Lightweight (2006-2007). |
| José Martín Castillo |
 MEX |
BOX |
Olympics |
1996 |
Olympics - 1996 Flyweight; Professional World Champion - WBC Lightweight (2000-2002); WBC Lightweight (2004-2005). |
| Adnan Ćatić |
GER |
BOX |
Olympics |
2000 |
Olympics - 2000 Light Middleweight; Professional World Champion - WBO Middleweight Champion (2003-2004); WBA Middleweight Champion (2006, 2007-2010, and 2010-2012); IBF Middleweight Champion (2013-2014), WBA Super-Middleweight Champion (2016), (boxed professionally using the name Felix Sturm). |
| Nehomar Cermeño |
VEN |
BOX |
Olympics |
2000 |
Olympics - 2000 Bantamweight; Professional World Champion - WBA Super-bantamweight (2016-2017). |
| Pablo Chacón |
 ARG |
BOX |
Olympics |
1996 |
Olympics - 1996 Featherweight (Bronze); Professional World Champion - WBO Featherweight (2001-2002). |
| Ruslan Chagayev |
UZB |
BOX |
Olympics |
1996—2000 |
Olympics - 1996 Heavyweight; Professional World Champion - WBA Heavyweight (2007-2008); WBA Heavyweight (2014-2016); WBA Heavyweight (2016). |
| Cassius Clay |
USA |
BOX |
Olympics / Torch Bearer / Olympic Flagbearer |
1960—2012 |
Olympics - 1960 Light-heavyweight (Gold); Professional World Champion - Undisputed Heavyweight (1964-1964); WBC Heavyweight (1964-1967); Undisputed Heavyweight (1967-1967); Undisputed Heavyweight (1974-1978); WBA Heavyweight (1978-1979). |
| Robson Conceição |
 BRA |
BOX |
Olympics |
2008—2016 |
Olympics - 2008 Featherweight / 2012 Lightweight / 2016 Lightweight (Gold); Professional World Champion - WBC Super-featherweight (2024). |
| Joe Cordina |
GBR |
BOX |
Olympics |
2016 |
Olympics - 2016 Lightweight; Professional World Champion - IBF Junior-lightweight (2022); IBF Junior-lightweight (2023-2024). |
| Miguel Cotto |
PUR |
BOX |
Olympics |
2000 |
Olympics - 2000 Light-Welterweight; Professional World Champion - WBO Junior-middleweight (2017); WBO Welterweight (2009); WBO Junior-welterweight (2004-2006); WBA Super-welterweight (2010); WBA Welterweight (2006-2008); WBC Middleweight (2014-2015). |
| Miguel Ángel Cuello |
ARG |
BOX |
Olympics |
1972 |
Olympics - 1972 Light-heavyweight; Professional World Champion - WBC Light-heavyweight (1977-1978). |
| Jack Culcay Keth |
GER |
BOX |
Olympics |
2008 |
Olympics - 2008 Welterweight; Professional World Champion - WBA Super-welterweight (2016-2017). |
| Francesco Damiani |
ITA |
BOX |
Olympics |
1980—1984 |
Olympics - 1980 / 1984 Heavyweight (Silver); Professional World Champion - WBO Heavyweight (1989-1991). |
| Vic Darchinyan |
 ARM |
BOX |
Olympics |
2000 |
Olympics - 2000 Flyweight; Professional World Champion - WBA Super-flyweight (2008-2009); WBC Super-flyweight (2008-2010); IBF Junior-bantamweight (2008-2009); IBF Flyweight (2004-2007). |
| Keyshawn Davis |
USA |
BOX |
Olympics |
2020 |
Olympics - 2020 Lightweight (Silver); Professional World Champion - WBO Lightweight (2025). |
| Oscar De La Hoya |
USA |
BOX |
Olympics |
1992 |
Olympics - 1992 Lightweight (Gold); Professional World Champion - WBO Middleweight (2004); WBO Junior-lightweight (1994-1994); WBA Super-welterweight (2002-2003); WBC Super-welterweight (2001-2003); WBC Super-welterweight (2006-2007); WBC Welterweight (2000); IBF Lightweight (1995-1995). |
| Pedro Décima |
ARG |
BOX |
Olympics |
1984 |
Olympics - 1984 Bantamweight; Professional World Champion - WBC Super-Bantamweight (1990-1991). |
| James DeGale |
GBR |
BOX |
Olympics |
2008 |
Olympics - 2008 Middleweight (Gold); Professional World Champion - IBF Super-middleweight (2015-2017); IBF Super-middleweight (2018). |
| Adrian Diaconu |
 ROU |
BOX |
Olympics |
2000 |
Olympics - 2000 Middleweight; Professional World Champion - WBC Light-heavyweight (2008-2009). |
| David Diaz |
USA |
BOX |
Olympics |
1996 |
Olympics - 1996 Light-welterweight; Professional World Champion - WBC Lightweight (2007-2008). |
| Joseph Diaz, Jr. |
USA |
BOX |
Olympics |
2012 |
Olympics - 2012 Bantamweight; Professional World Champion - IBF Junior-lightweight (2020-2021). |
| Nelson Dieppa |
PUR |
BOX |
Olympics |
1992 |
Olympics - 1992 Light-Flyweight; Professional World Champion - WBO Junior-flyweight (2001-2005). |
| Isaac Dogboe |
 GHA |
BOX |
Olympics |
2012 |
Olympics - 2012 Bantamweight; Professional World Champion - WBO Junior-featherweight (2018). |
| Leonard Doroftei |
ROU |
BOX |
Olympics |
1992—1996 |
Olympics - 1992 Light-welterweight (Bronze) / 1996 Lightweight (Bronze); Professional World Champion - WBA Lightweight (2002-2003). |
| Stipe Drviš |
 CRO |
BOX |
Olympics |
1996 |
Olympics - 1996 Light-Heavyweight; Professional World Champion - WBA Light-heavyweight (2007). |
| Caroline Dubois |
GBR |
BOX |
Olympics / YOG |
2018—2020 |
Olympics - 2020 Lightweight; Professional World Champion; WBC Lightweight (2024- ); WBO Lightweight (2026- ) |
| José Durán |
 ESP |
BOX |
Olympics |
1968 |
Olympics - 1968 Welterweight; Professional World Champion - WBA Super-Welterweight (1976-1976). |
| Serhiy Dzinziruk |
UKR |
BOX |
Olympics |
1996 |
Olympics - 1996 Welterweight; Professional World Champion - WBO Light-Middleweight (2005-2011). |
| Zsolt Erdei |
HUN |
BOX |
Olympics |
1996—2000 |
Olympics - 1996 Middleweight / 2000 Middleweight (Bronze); Professional World Champion - WBO Light-heavyweight (2004-2009); WBC Cruiserweight (2009-2010). |
| Antonio Esparragoza |
VEN |
BOX |
Olympics / Opening Flagbearer |
1980 |
Olympics - 1980 Featherweight; Professional World Champion - WBA Featherweight (1987-1991). |
| Marlen Esparza |
USA |
BOX |
Olympics |
2012 |
Olympics - 2012 Flyweight; Professional World Champion - WBC Flyweight (2021-2024); WBA Flyweight (2022-2024) WBO Flyweight (2023-2024) |
| Jeff Fenech |
AUS |
BOX |
Olympics |
1984 |
Olympics - 1984 Flyweight; Professional World Champion - WBC Featherweight (1988-1989); WBC Super-Bantamweight (1987-1987), IBF Bantamweight (1985-1986). |
| Beatriz Ferreira |
BRA |
BOX |
Olympics |
2020—2024 |
Olympics - 2020 Lightweight (silver) / 2024 Lightweight (bronze); Professional World Champion; IBF Lightweight (2024-2025) |
| Jackie Fields |
USA |
BOX |
Olympics |
1924 |
Olympics - 1924 Featherweight (Gold); Professional World Champion - Undisputed Welterweight (1929-1930). |
| George Foreman |
USA |
BOX |
Olympics |
1968 |
Olympics - 1968 Super-heavyweight (Gold); Professional World Champion - Undisputed Heavyweight (1973-1974); IBF & WBA Heavyweight (1994-1995); IBF Heavyweight (1995-1995). |
| Vernon Forrest |
USA |
BOX |
Olympics |
1992 |
Olympics - 1992 Light-Welterweight; Professional World Champion - WBC Super-welterweight (2007-2008); WBC Super-welterweight (2008-2009); WBC Welterweight (2002-2003); IBF Welterweight (2001). |
| Giacobbe Fragomeni |
ITA |
BOX |
Olympics |
2000 |
Olympics - 2000 Light-Heavyweight; Professional World Champion - WBC Cruiserweight (2008-2009). |
| Alfonso Frazer |
 PAN |
BOX |
Olympics |
1964 |
Olympics - 1964 Featherweight; Professional World Champion - WBA Super-lightweight (1972). |
| Joe Frazier |
USA |
BOX |
Olympics |
1964 |
Olympics - 1964 Super-heavyweight (Gold); Professional World Champion - WBC Heavyweight (1968-1970); Undisputed Heavyweight (1970-1973). |
| Muslim Gadzhimagomedov |
 ROC |
BOX |
Olympics |
2020 |
Olympics - 2020 Heavyweight (Silver); Professional World Champion - WBA Bridgerweight (2024-2026). |
| Víctor Galíndez |
ARG |
BOX |
Olympics |
1968 |
Olympics - 1968 Light-Middleweight; Professional World Champion - WBA Light-Heavyweight (1974-1978); WBA Light-Heavyweight (1979-1979). |
| Yuriorkis Gamboa |
CUB |
BOX |
Olympics |
2004 |
Olympics - 2004 Flyweight (Gold); Professional World Champion - WBA Featherweight (2010); WBA Featherweight (2009-2010); WBA Featherweight (2010-2011); IBF Featherweight (2010-2011). |
| Hugo Garay |
ARG |
BOX |
Olympics |
2000 |
Olympics - 2000 Light-Heavyweight; Professional World Champion - WBA Light-heavyweight (2008-2009). |
| Héctor García |
 DOM |
BOX |
Olympics |
2016 |
Olympics - 2016 Bantamweight; Professional World Champion - WBA Super-featherweight (2022-2023). |
| Daniel Geale |
AUS |
BOX |
Olympics |
2000 |
Olympics - 2000 Welterweight; Professional World Champion - WBA Middleweight (2012); IBF Middleweight (2011-2013). |
| Frankie Genaro |
USA |
BOX |
Olympics |
1920 |
Olympics - 1920 Flyweight (Gold); Professional World Champion - NBA Flyweight (1928-1931). |
| Gennady Golovkin |
 KAZ |
BOX |
Olympics / Administrator |
2004—2025 |
Olympics - 2004 Middleweight (Silver); Professional World Champion - WBA Middleweight (2012-2014); WBA Middleweight (2022-2023); WBA Middleweight (2010-2012); WBC Middleweight (2016-2018); IBF Middleweight (2015-2018); IBF Middleweight (2019-2023). |
| Wilfredo Gómez |
PUR |
BOX |
Olympics |
1972 |
Olympics - 1972 Flyweight; Professional World Champion - WBC Featherweight (1984-1984); WBC Super-Bantamweight (1977-1982); WBA Super-Featherweight (1985-1986). |
| Jonathan González |
PUR |
BOX |
Olympics |
2008 |
Olympics - 2008 Light-Welterweight; Professional World Champion - WBO Junior-flyweight (2021-2024). |
| Julio González |
CUB |
BOX |
Olympics |
1992—1996 |
Olympics - 1992 Lightweight / 1996 Lightweight; Professional World Champion - WBO Light-heavyweight (2003-2004). |
| Julio César González |
MEX |
BOX |
Olympics |
1996 |
Olympics - 1996 Light-heavyweight; Professional World Champion - WBO Light-Heavyweight (2003-2004). |
| Miguel Ángel González |
MEX |
BOX |
Olympics |
1988 |
Olympics - 1988 Featherweight; Professional World Champion - WBC Lightweight (1992-1996). |
| Danny Green |
AUS |
BOX |
Olympics |
2000 |
Olympics - 2000 Light-Heavyweight; Professional World Champion - WBA Light-heavyweight (2007-2008). |
| Montell Griffin |
USA |
BOX |
Olympics |
1992 |
Olympics - 1992 Light-Heavyweight; Professional World Champion - WBC Light-heavyweight (1997). |
| Artur Grigoryan |
 EUN
UZB |
BOX |
Olympics |
1992 |
Olympics - 1992 Lightweight; Professional World Champion - WBO Lightweight (1996-2004). |
| David Grimán |
VEN |
BOX |
Olympics |
1988 |
Olympics - 1988 Flyweight; Professional World Champion - WBA Flyweight (1992-1994). |
| Roberto Guerra |
CUB |
BOX |
Olympics |
2000 |
Olympics - 2000 Welterweight; Professional World Champion - IBF Junior-lightweight (2009-2010); IBF Featherweight (2006); IBF Featherweight (2007-2008). |
| Joan Guzmán |
DOM |
BOX |
Olympics / Opening Flagbearer |
1996 |
Olympics - 1996 Flyweight; Professional World Champion - WBO Junior-lightweight (2006-2008); WBO Junior-featherweight (2002-2005). |
| Yoan Pablo Hernández |
CUB |
BOX |
Olympics |
2004 |
Olympics - 2004 Light-Heavyweight; Professional World Champion - IBF Cruiserweight (2011-2015). |
| Jamel Herring |
USA |
BOX |
Olympics |
2012 |
Olympics - 2012 Light-Welterweight; Professional World Champion - WBO Junior-lightweight (2019-2021). |
| Virgil Hill |
USA |
BOX |
Olympics |
1984 |
Olympics - 1984 Middleweight (Silver); Professional World Champion - WBA Cruiserweight (2000-2002); IBF Light-Heavyweight (1996-1997); WBA Light-Heavyweight (1987-1991); WBA Light-Heavyweight (1992-1997). |
| Akinobu Hiranaka |
 JPN |
BOX |
Olympics |
1984 |
Olympics - 1984 Welterweight; Professional World Champion - WBA Super-Lightweight (1992-1992). |
| Richardson Hitchins |
HAI |
BOX |
Olympics |
2016 |
Olympics - 2016 Light-Welterweight; Professional World Champion - IBF Junior-welterweight (2024-2026). |
| Valdemar Holberg |
DEN |
BOX |
Olympics |
1908 |
Olympics - 1908 Lightweight; Professional World Champion - Australian Pro Welterweight (1914). |
| Evander Holyfield |
USA |
BOX |
Olympics / Torch Bearer |
1984—1996 |
Olympics - 1984 Light-Heavyweight (Bronze); Professional World Champion - WBA Cruiserweight (1986-1987); WBA & IBF Cruiserweight (1987-1988); Undisputed Cruiserweight (1988-1988); IBF, WBA & WBC Heavyweight (1990-1992); IBF & WBA Heavyweight (1993-1994); WBA Heavyweight (1996-1997); IBF & WBA Heavyweight (1997-1999); WBA Heavyweight (2000-2001). |
| Maurice Hope |
GBR |
BOX |
Olympics |
1972 |
Olympics - 1972 Welterweight; Professional World Champion - WBC Super-Welterweight (1979-1981). |
| Jeff Horn |
AUS |
BOX |
Olympics |
2012 |
Olympics - 2012 Light-Welterweight; Professional World Champion - WBO Welterweight (2017-2018). |
| Oleksandr Hvozdyk |
UKR |
BOX |
Olympics |
2012 |
Olympics - 2012 Light-heavyweight (bronze) - Professional World Champion - WBC light-heavyweight (2018-2019). |
| Sultan Ibragimov |
RUS |
BOX |
Olympics |
2000 |
Olympics - 2000 Heavyweight (Silver); Professional World Champion - WBO Heavyweight (2007-2008). |
| Toshiyuki Igarashi |
JPN |
BOX |
Olympics |
2004 |
Olympics - 2004 Light-Flyweight; Professional World Champion - WBC Flyweight (2012-2013). |
| Julius Indongo |
NAM |
BOX |
Olympics |
2008 |
Olympics - 2008 Lightweight; Professional World Champion - WBA Super-lightweight (2017); IBF Junior-welterweight (2016-2017). |
| Paul Ingle |
GBR |
BOX |
Olympics |
1992 |
Olympics - 1992 Flyweight; Professional World Champion - IBF Featherweight (1999-2000). |
| Badou Jack |
 GAM |
BOX |
Olympics / Opening Flagbearer / Closing Flagbearer |
2008 |
Olympics - 2008 Middleweight; Professional World Champion - WBA Light-heavyweight (2017); WBA Light-heavyweight (2017); WBC Cruiserweight (2023); WBC Cruiserweight (2024-2025); WBC Super-middleweight (2015-2017). |
| Julius Jackson |
 ISV |
BOX |
Olympics |
2008 |
Olympics - 2008 Light-Heavyweight; Professional World Champion - WBC Middleweight (1995-1995). |
| Éder Jofre |
BRA |
BOX |
Olympics |
1956 |
Olympics - 1956 Bantamweight; Professional World Champion - NBA Bantamweight (1961-1965), WBC Featherweight (1973). |
| Ingemar Johansson |
 SWE |
BOX |
Olympics |
1952 |
Olympics - 1952 Heavyweight (Silver); Professional World Champion - Undisputed Heavyweight (1959-1960). |
| Chris Johnson |
CAN |
BOX |
Olympics |
1992 |
Olympics - 1992 Middleweight (Bronze); Professional World Champion - WBA Featherweight (2005-2009); WBA Featherweight (2010-2013); WBA Featherweight (2003-2005). |
| Marvin Johnson |
USA |
BOX |
Olympics |
1972 |
Olympics - 1972 Middleweight (Bronze); Professional World Champion - WBC Light-Heavyweight (1978-1979); WBA Light-Heavyweight (1979-1980); WBA Light-Heavyweight (1986-1987). |
| Natasha Jonas |
GBR |
BOX |
Olympics |
2012 |
Olympics - 2012 Lightweight; Professional World Champion - WBO Light-Middleweight (2022-2023); WBC Light-Middleweight (2022-2023); IBF Light-Middleweight (2022-2023); IBF Welterweight (2023-) |
| Oshae Jones |
USA |
BOX |
Olympics |
2020 |
Olympics - 2020 Welterweight; Professional World Champion; IBF Light-middleweight (2024- ) |
| Roy Jones, Jr. |
USA |
BOX |
Olympics |
1988 |
Olympics - 1988 Light-Middleweight (Silver); Professional World Champion - IBF Light-Heavyweight (1999-2002); WBC Light-Heavyweight (1996-1997); WBC Light-Heavyweight (1997-2004); WBA Light-Heavyweight (1998-2004); IBF Middleweight (1993-1994); IBF Super-Middleweight (1994-1996), WBA Heavyweight (2003-2004). |
| Anthony Joshua |
GBR |
BOX |
Olympics |
2012 |
Olympics - 2012 Super-Heavyweight (Gold); Professional World Champion - WBO Heavyweight (2018-2019); WBO Heavyweight (2019-2021); WBA Heavyweight (2017-2019); WBA Heavyweight (2019-2021); IBF Heavyweight (2016-2019); IBF Heavyweight (2019-2021). |
| Slobodan Kačar |
 SRB
 YUG |
BOX |
Olympics |
1980 |
Olympics - 1980 Light-heavyweight (Gold); Professional World Champion - IBF Light-Heavyweight (1985-1986). |
| Josh Kelly |
GBR |
BOX |
Olympics |
2016 |
Olympics - 2016 Welterweight; Professional World Champion - IBF Junior-middleweight (2026-). |
| Amir Khan |
GBR |
BOX |
Olympics |
2004 |
Olympics - 2004 Lightweight (Silver); Professional World Champion - WBA Super-lightweight (2009-2011); WBA Super-lightweight (2012); IBF Junior-welterweight (2011). |
| Kim Gi-Su |
KOR |
BOX |
Olympics |
1960 |
Olympics - 1960 Welterweight; Professional World Champion - WBA Super-welterweight (1966-1968). |
| Volodymyr Klychko |
UKR |
BOX |
Olympics |
1996 |
Olympics - 1996 Super-heavyweight (Gold); Professional World Champion - WBO Heavyweight (2000-2003); IBF Heavyweight (2006- ); WBO Heavyweight (2008- ). WBA "Super-Champion" Heavyweight (2011- ). |
| Kazuo Kobayashi |
JPN |
BOX |
Olympics |
1972 |
Olympics - 1972 Featherweight; Professional World Champion - WBC Super-bantamweight (1976). |
| Andriy Kotelnyk |
UKR |
BOX |
Olympics |
2000 |
Olympics - 2000 Lightweight (Silver); Professional World Champion - WBA Super-lightweight (2008-2009). |
| Alfred Kotey |
GHA |
BOX |
Olympics |
1988 |
Olympics - 1988 Flyweight; Professional World Champion - WBO Bantamweight (1994-1995). |
| István Kovács |
HUN |
BOX |
Olympics |
1992—1996 |
Olympics - 1992 Flyweight (Bronze) / 1996 Bantamweight (Gold); Professional World Champion - WBO Featherweight (2001). |
| Fidel LaBarba |
USA |
BOX |
Olympics |
1924 |
Olympics - 1924 Flyweight (Gold); Professional World Champion - Undisputed Flyweight (1925-1927). |
| Jeff Lacy |
USA |
BOX |
Olympics |
2000 |
Olympics - 2000 Middleweight; Professional World Champion - IBF Super-middleweight (2004-2006). |
| Andy Lee |
IRL |
BOX |
Olympics |
2004 |
Olympics - 2004 Middleweight; Professional World Champion - WBO Middleweight (2014-2015). |
| Genaro León |
MEX |
BOX |
Olympics |
1984 |
Olympics - 1984 Welterweight; Professional World Champion - WBO Welterweight (1989-1989). |
| Sugar Ray Leonard |
USA |
BOX |
Olympics |
1976 |
Olympics - 1976 Light-welterweight (Gold); Professional World Champion - WBC Light-Heavyweight (1988-1988); WBC Middleweight (1987-1987); WBC Super-Middleweight (1988-1990); WBA Super-Welterweight (1981-1981); WBC Welterweight (1979-1980); WBC Welterweight (1980-1982); WBA Welterweight (1981-1982). |
| Andrew Lewis |
 GUY |
BOX |
Olympics |
1992 |
Olympics - 1992 Welterweight; Professional World Champion - WBA Welterweight (2001-2002). |
| Lennox Lewis |
CAN |
BOX |
Olympics / Closing Flagbearer |
1984—1988 |
Olympics - 1984 / 1988 Super-heavyweight (Gold); Professional World Champion - WBC Heavyweight (1992-1994); WBC Heavyweight (1997-1999); IBF, WBA & WBC Heavyweight (1999-2000); IBF & WBC Heavyweight (2000-2001); IBF & WBC Heavyweight (2001-2002); WBC Heavyweight (2002-2004). |
| Siarhei Liakhovich |
 BLR |
BOX |
Olympics |
1996 |
Olympics - 1996 Super-Heavyweight; Professional World Champion - WBO Heavyweight (2006). |
| Daniel Londas |
FRA |
BOX |
Olympics |
1980 |
Olympics - 1980 Featherweight; Professional World Champion - WBO Super-Featherweight (1992-1992). |
| Juan Manuel López |
PUR |
BOX |
Olympics |
2004 |
Olympics - 2004 Flyweight; Professional World Champion - WBO Featherweight (2010-2011); WBO Super-bantamweight (2008-2010). |
| Teófimo López |
 HON |
BOX |
Olympics |
2016 |
Olympics - 2016 Lightweight; Professional World Champion - WBA Lightweight (2020-2021); IBF Lightweight (2019-2021). |
| Sandro Lopopolo |
ITA |
BOX |
Olympics |
1960 |
Olympics - 1960 Lightweight (Silver); Professional World Champion - 1966-67 Undisputed Super-lightweight (1966-1967). |
| Julien Lorcy |
FRA |
BOX |
Olympics |
1992 |
Olympics - 1992 Lightweight; Professional World Champion - WBA Lightweight (1999); WBA Lightweight (2001). |
| Christian M'Billi |
FRA |
BOX |
Olympics |
2016 |
Olympics - 2016 Middleweight; Professional World Champion - WBC Super-middleweight (2026-). |
| Raúl Macías |
MEX |
BOX |
Olympics |
1952 |
Olympics - 1952 Bantamweight; Professional World Champion - NBA Bantamweight (1955-1957). |
| Brian Magee |
IRL |
BOX |
Olympics |
1996 |
Olympics - 1996 Middleweight; Professional World Champion - WBA Super-middleweight (2012). |
| Charlie Magri |
GBR |
BOX |
Olympics |
1976 |
Olympics - 1976 Flyweight; Professional World Champion - WBC Flyweight (1983-1983). |
| Masibulele Makepula |
 RSA |
BOX |
Olympics / Opening Flagbearer |
1996 |
Olympics - 1996 Light-Flyweight; Professional World Champion - WBO Junior-flyweight (2000-1905). |
| Abner Mares |
MEX |
BOX |
Olympics |
2004 |
Olympics - 2004 Bantamweight; Professional World Champion - WBA Featherweight (2016-2018); WBC Featherweight (2013); WBC Super-bantamweight (2012-2013); IBF Bantamweight (2011-2012). |
| Raul Marquez |
USA |
BOX |
Olympics |
1992 |
Olympics - 1992 Light-middleweight; Professional World Champion - IBF Super-Welterweight (1997). |
| Savannah Marshall |
GBR |
BOX |
Olympics |
2012—2016 |
Olympics - 2012 Middleweight / 2016 Middleweight; Professional World Champion - WBO Middleweight (2020-2022);WBA Super-Middleweight (2023- ); WBC Super-Middleweight (2023- ); IBF Super-Middleweight (2023- 2025); WBO Super-Middleweight (2023- 2025) |
| Fernando Martínez |
ARG |
BOX |
Olympics |
2016 |
Olympics - 2016 Flyweight; Professional World Champion - WBA Super-flyweight (2024-2025); IBF Junior-bantamweight (2022-2024). |
| Henry Maske |
 GDR |
BOX |
Olympics |
1988 |
Olympics - 1988 Middleweight (Gold); Professional World Champion - IBF Light-Heavyweight (1993-1996). |
| Maselino Masoe |
 ASA |
BOX |
Olympics / Opening Flagbearer |
1988—1996 |
Olympics - 1988 / 1992 / 1996 Welterweight (1988)/Light-middleweight (1992-96); Professional World Champion - WBA Middleweight (2004-2006). |
| Jeffrey Mathebula |
RSA |
BOX |
Olympics |
2000 |
Olympics - 2000 Featherweight; Professional World Champion - IBF Junior-featherweight (2012). |
| Mikaela Mayer |
USA |
BOX |
Olympics |
2016 |
Olympics - 2016 Lightweight; Professional World Champion - WBO Super-Featherweight (2020-2022);IBF Super-Featherweight (2021-2022);WBO Welterweight (2024- );WBA Light-Middleweight (2025- );WBC Light-Middleweight (2025- );WBO Light-Middleweight (2025- ); |
| Floyd Mayweather, Jr. |
USA |
BOX |
Olympics |
1996 |
Olympics - 1996 Featherweight (Bronze); Professional World Champion - WBO Welterweight (2015); WBA Super-welterweight (2012-2016); WBA Welterweight (2014-2016); WBC Super-welterweight (2007); WBC Super-welterweight (2013-2015); WBC Welterweight (2006-2008); WBC Welterweight (2011-2015); WBC Super-lightweight (2005-2006); WBC Lightweight (2002-2004); IBF Welterweight (2006). |
| Mike McCallum |
JAM |
BOX |
Olympics |
1976 |
Olympics - 1976 Welterweight; Professional World Champion - WBC Light-Heavyweight (1994-1995); WBA Middleweight (1989-1991); WBA Super-Welterweight (1983-1983); WBA Super-Welterweight (1984-1987). |
| Wayne McCullough |
IRL |
BOX |
Olympics / Opening Flagbearer |
1988—1992 |
Olympics - 1988 / 1992 Bantamweight (Silver); Professional World Champion - WBC Bantamweight (1995-1996). |
| Barry McGuigan |
IRL |
BOX |
Olympics |
1980 |
Olympics - 1980 Featherweight; Professional World Champion - WBA Featherweight (1985-1986). |
| Kennedy McKinney |
USA |
BOX |
Olympics |
1988 |
Olympics - 1988 Bantamweight (Gold); Professional World Champion - IBF Super-Bantamweight (1992-1994); WBO Super-Bantamweight (1997). |
| Beibis Mendoza |
COL |
BOX |
Olympics |
1996 |
Olympics - 1996 Light-Flyweight; Professional World Champion - WBA Light-flyweight (2000-2001). |
| Ray Mercer |
USA |
BOX |
Olympics |
1988 |
Olympics - 1988 Heavyweight (Gold); Professional World Champion - WBO Heavyweight (1991-1991). |
| Alan Minter |
GBR |
BOX |
Olympics |
1972 |
Olympics - 1972 Light-Middleweight (Bronze); Professional World Champion - WBC Middleweight (1980-1980); Undisputed Middleweight (1980-1980). |
| John John Molina |
PUR |
BOX |
Olympics |
1984 |
Olympics - 1984 Bantamweight; Professional World Champion - IBF Super-Featherweight (1989-1990); IBF Super-Featherweight (1992-1995); WBO Super-Featherweight (1989-1989). |
| Davey Moore |
USA |
BOX |
Olympics |
1952 |
Olympics - 1952 Bantamweight; Professional World Champion - WBA Super-Welterweight (1982-1983). |
| Eric Morel |
USA |
BOX |
Olympics |
1996 |
Olympics - 1996 Flyweight; Professional World Champion - WBA Flyweight (2000-2003). |
| John Mugabi |
 UGA |
BOX |
Olympics |
1980 |
Olympics - 1980 Welterweight (Silver); Professional World Champion - WBC Super-Welterweight (1989-1990). |
| Mun Seong-Gil |
KOR |
BOX |
Olympics |
1984 |
Olympics - 1984 Bantamweight; Professional World Champion - WBA Bantamweight (1988-1989); WBC Super-Flyweight (1990-1993). |
| Hassan N'Dam N'Jikam |
CMR |
BOX |
Olympics / Closing Flagbearer |
2004—2016 |
Olympics - 2004 Middleweight / 2016 Light-heavyweight; Professional World Champion - WBO Middleweight (2012); WBA Middleweight (2017). |
| Vincenzo Nardiello |
ITA |
BOX |
Olympics |
1988 |
Olympics - 1988 Light-middleweight; Professional World Champion - WBC Super-Middleweight (1996). |
| Omar Narváez |
ARG |
BOX |
Olympics |
1996—2000 |
Olympics - 1996 Flyweight / 2000 Flyweight; Professional World Champion - WBO Junior-bantamweight (2010-2014); WBO Flyweight (2002-2010). |
| Skye Nicolson |
AUS |
BOX |
Olympics |
2020 |
Olympics - 2020 Featherweight; Professional World Champion - WBC Featherweight (24-2025);WBC Super-Bantamweight (2026- ) |
| Fulgencio Obelmejias |
VEN |
BOX |
Olympics |
1976 |
Olympics - 1976 Middleweight; Professional World Champion - WBA Super-Middleweight (1988-1989). |
| Lawrence Okolie |
GBR |
BOX |
Olympics |
2016 |
Olympics - 2016 Heavyweight; Professional World Champion - WBO Junior-heavyweight (2021-2023); WBC Bridgerweight (2024). |
| Patrizio Oliva |
ITA |
BOX |
Olympics |
1980 |
Olympics - 1980 Light-welterweight (Gold); Professional World Champion - WBA Super-Lightweight (1986-1987). |
| Jai Tapu Opetaia |
AUS |
BOX |
Olympics |
2012 |
Olympics - 2012 Heavyweight - Professional World Champion - IBF Cruiserweight (2021-). |
| Sven Ottke |
GER
FRG |
BOX |
Olympics |
1988—1996 |
Olympics - 1988 / 1992 / 1996 Middleweight; Professional World Champion - IBF Super-Middleweight (1998-2004); WBA Super-Middleweight (2003-2004). |
| Nordine Oubaali |
FRA |
BOX |
Olympics |
2008—2012 |
Olympics - 2008 Light-Flyweight / 2012 Flyweight; Professional World Champion - WBC Bantamweight (2019-2020); WBC Bantamweight (2021). |
| Giovanni Parisi |
ITA |
BOX |
Olympics |
1988 |
Olympics - 1988 Featherweight (Gold); Professional World Champion - WBO Lightweight (1992-1993); WBO Super-Lightweight (1996-1998). |
| Park Chan-Hui |
KOR |
BOX |
Olympics |
1976 |
Olympics - 1976 Light-flyweight; Professional World Champion - Undisputed Flyweight (1979-1980). |
| Mate Parlov |
CRO
YUG |
BOX |
Olympics |
1968—1972 |
Olympics - 1968 / 1972 Light-heavyweight (Gold); Professional World Champion - WBC Light-Heavyweight (1978-1978). |
| Jean Pascal |
CAN |
BOX |
Olympics |
2004 |
Olympics - 2004 Middleweight; Professional World Champion - WBA Light-heavyweight (2019-2021); WBC Light-heavyweight (2009-2011). |
| Floyd Patterson |
USA |
BOX |
Olympics |
1952 |
Olympics - 1952 Middleweight (Gold); Professional World Champion - Undisputed Heavyweight (1956-1959); Undisputed Heavyweight (1960-1962). |
| Juan Carlos Payano |
DOM |
BOX |
Olympics |
2004—2008 |
Olympics - 2004 Flyweight / 2008 Flyweight; Professional World Champion - WBA Bantamweight (2014-2016). |
| Robbie Peden |
AUS |
BOX |
Olympics |
1992—1996 |
Olympics - 1992 Flyweight / 1996 Featherweight; Professional World Champion - IBF Junior-lightweight (2005). |
| José Pedraza |
PUR |
BOX |
Olympics |
2008 |
Olympics - 2008 Lightweight; Professional World Champion - WBO Lightweight (2018); IBF Junior-lightweight (2015-2017). |
| Darleys Pérez |
COL |
BOX |
Olympics |
2008 |
Olympics - 2008 Lightweight; Professional World Champion - WBA Lightweight (2015). |
| Luis Pérez |
PUR |
BOX |
Olympics |
1996 |
Olympics - 1996 Light-Welterweight; Professional World Champion - IBF Bantamweight (2007); IBF Junior-bantamweight (2003-2006). |
| Pascual Pérez |
ARG |
BOX |
Olympics |
1948 |
Olympics - 1948 Flyweight (Gold); Professional World Champion - Undisputed Flyweight (1954-1960). |
| Samuel Peter |
 NGR |
BOX |
Olympics |
2000 |
Olympics - 2000 Super-Heavyweight; Professional World Champion - WBC Heavyweight (2008). |
| Michele Piccirillo |
ITA |
BOX |
Olympics |
1992 |
Olympics - 1992 Light-Welterweight; Professional World Champion - IBF Welterweight (2002-2003). |
| Bernardo Piñango |
VEN |
BOX |
Olympics |
1980 |
Olympics - 1980 Bantamweight; Professional World Champion - WBA Bantamweight (1986-1987); WBA Super-Bantamweight (1988-1988). |
| Daniel Ponce de León |
MEX |
BOX |
Olympics |
2000 |
Olympics - 2000 Flyweight; Professional World Champion - WBO Junior-featherweight (2005-2008); WBC Featherweight (2012-2013). |
| Payao Poontarat |
 THA |
BOX |
Olympics |
1976 |
Olympics - 1976 Light-Flyweight (Bronze); Professional World Champion - WBC Super-Flyweight (1983-1984). |
| Aleksandr Povetkin |
RUS |
BOX |
Olympics |
2004 |
Olympics - 2004 Heavyweight; Professional World Champion - WBA "Regular" Heavyweight Champion (2011-2013). |
| Lauren Price |
GBR |
BOX |
Olympics |
2020 |
Olympics - 2020 Middleweight (Gold); Professional World Champion; WBA Welterweight (2024- ); WBC Welterweight (2025- ) IBF Welterweight (2025- ) |
| Kubrat Pulev |
 BUL |
BOX |
Olympics |
2008 |
Olympics - 2008 Super-Heavyweight; Professional World Champion - WBA Heavyweight (2024-2025). |
| Ike Quartey |
GHA |
BOX |
Olympics |
1988 |
Olympics - 1988 Light-welterweight; Professional World Champion - WBA Welterweight (1994-1997). |
| Khalid Rahilou |
 MAR |
BOX |
Olympics |
1988 |
Olympics - 1988 Light-welterweight; Professional World Champion - WBA Super-Lightweight (1997-1998). |
| Robeisy Ramírez |
CUB |
BOX |
Olympics / YOG |
2010—2016 |
Olympics - 2012 Flyweight (Gold) / 2016 Bantamweight (Gold); Professional World Champion - WBO Featherweight (2023). |
| Leo Randolph |
USA |
BOX |
Olympics |
1976 |
Olympics - 1976 Flyweight (Gold); Professional World Champion - WBA Super-Bantamweight (1980-1980). |
