| Athlete |
Nation(s) |
Sport(s) |
Role(s) |
Era |
Notes |
| Brahim Asloum |
 FRA |
BOX |
Olympics |
2000 |
Olympic Gold - 2000 Light-Flyweight; Professional World Champion - WBA Light-Flyweight (2007-2009). |
| Nino Benvenuti |
 ITA |
BOX |
Olympics |
1960 |
Olympic Gold - 1960 Welterweight; 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). |
| Mark Breland |
 USA |
BOX |
Olympics |
1984 |
Olympic Gold - 1984 Welterweight; Professional World Champion - WBA Welterweight (1987-1987); WBA Welterweight (1989-1990). |
| Joel Casamayor |
 CUB |
BOX |
Olympics |
1992 |
Olympic Gold - 1992 Bantamweight; Professional World Champion - WBA Super-Featherweight (2000-2002); WBC Lightweight (2006-2007). |
| Cassius Clay |
USA |
BOX |
Olympics |
1960 |
Olympic Gold - 1960 Light-heavyweight; Professional World Champion - Undisputed Heavyweight (1964-1964); WBC Heavyweight (1964-1967); Undisputed Heavyweight (1967-1967); Undisputed Heavyweight (1974-1978); WBA Heavyweight (1978-1979). |
| Oscar De La Hoya |
USA |
BOX |
Olympics |
1992 |
Olympic Gold - 1992 Lightweight; Professional World Champion - WBO Lightweight (1994-1996); WBO Super-Featherweight (1994-1994); IBF Lightweight (1995-1995); WBC Light-Welterweight (1996-1997); WBC Welterweight (1997-1999); WBC Welterweight (2000-2000); WBC Light-Middleweight (2001-2003); WBA Light-Middleweight (2002-2003); WBO Middleweight (2004-2004); WBC Light-Middleweight (2006-2007. |
| James DeGale |
 GBR |
BOX |
Olympics |
2008 |
Olympic Gold - 2008 Middleweight; Professional World Champion - IBF Super-Middleweight (2015-2017, 2018- ) |
| Jackie Fields |
USA |
BOX |
Olympics |
1924 |
Olympic Gold - 1924 Featherweight; Professional World Champion - Undisputed Welterweight (1929-1930). |
| George Foreman |
USA |
BOX |
Olympics |
1968 |
Olympic Gold - 1968 Super-heavyweight; Professional World Champion - Undisputed Heavyweight (1973-1974); IBF & WBA Heavyweight (1994-1995); IBF Heavyweight (1995-1995). |
| Joe Frazier |
USA |
BOX |
Olympics |
1964 |
Olympic Gold - 1964 Super-heavyweight; Professional World Champion - WBC Heavyweight (1968-1970); Undisputed Heavyweight (1970-1973). |
| Yuriorkis Gamboa |
CUB |
BOX |
Olympics |
2004 |
Olympic Gold - 2004 Flyweight; Professional World Champion - WBA Featherweight (2009- ); IBF Featherweight (2010-2011). |
| Frankie Genaro |
USA |
BOX |
Olympics |
1920 |
Olympic Gold - 1920 Flyweight; Professional World Champion - NBA Flyweight (1928-1931). |
| Anthony Joshua |
GBR |
BOX |
Olympics |
2012 |
Olympic Gold - 2012 Super-heavyweight; Professional World Champion - IBF Heavyweight 2016 |
| Slobodan Kačar |
 SRB
 YUG |
BOX |
Olympics |
1980 |
Olympic Gold - 1980 Light-heavyweight; Professional World Champion - IBF Light-Heavyweight (1985-1986). |
| Volodymyr Klychko |
 UKR |
BOX |
Olympics |
1996 |
Olympic Gold - 1996 Super-heavyweight; Professional World Champion - WBO Heavyweight (2000-2003); IBF Heavyweight (2006- ); WBO Heavyweight (2008- ). |
| István Kovács |
 HUN |
BOX |
Olympics |
1992—1996 |
Olympic Gold - 1992 / 1996 Bantamweight; Professional World Champion - WBO Featherweight (2001-2001). |
| Fidel LaBarba |
USA |
BOX |
Olympics |
1924 |
Olympic Gold - 1924 Flyweight; Professional World Champion - Undisputed Flyweight (1925-1927). |
| Sugar Ray Leonard |
USA |
BOX |
Olympics |
1976 |
Olympic Gold - 1976 Light-welterweight; 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). |
| Lennox Lewis |
 CAN |
BOX |
Olympics / Other |
1984—1988 |
Olympic Gold - 1984 / 1988 Super-heavyweight; 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). |
| Henry Maske |
 GDR |
BOX |
Olympics |
1988 |
Olympic Gold - 1988 Middleweight; Professional World Champion - IBF Light-Heavyweight (1993-1996). |
| Kennedy McKinney |
USA |
BOX |
Olympics |
1988 |
Olympic Gold - 1988 Bantamweight; Professional World Champion - IBF Super-Bantamweight (1992-1994); WBO Super-Bantamweight (1997-1997). |
| Ray Mercer |
USA |
BOX |
Olympics |
1988 |
Olympic Gold - 1988 Heavyweight; Professional World Champion - WBO Heavyweight (1991-1991). |
| Patrizio Oliva |
ITA |
BOX |
Olympics |
1980 |
Olympic Gold - 1980 Light-welterweight; Professional World Champion - WBA Super-Lightweight (1986-1987). |
| Giovanni Parisi |
ITA |
BOX |
Olympics |
1988 |
Olympic Gold - 1988 Featherweight; Professional World Champion - WBO Lightweight (1992-1993); WBO Super-Lightweight (1996-1998). |
| Mate Parlov |
 CRO
YUG |
BOX |
Olympics |
1968—1972 |
Olympic Gold - 1968 / 1972 Light-heavyweight; Professional World Champion - WBC Light-Heavyweight (1978-1978). |
| Floyd Patterson |
USA |
BOX |
Olympics |
1952 |
Olympic Gold - 1952 Middleweight; Professional World Champion - Undisputed Heavyweight (1956-1959); Undisputed Heavyweight (1960-1962). |
| Pascual Pérez |
 ARG |
BOX |
Olympics |
1948 |
Olympic Gold - 1948 Flyweight; Professional World Champion - Undisputed Flyweight (1954-1960). |
| Leo Randolph |
USA |
BOX |
Olympics |
1976 |
Olympic Gold - 1976 Flyweight; Professional World Champion - WBA Super-Bantamweight (1980-1980). |
| David Reid |
USA |
BOX |
Olympics |
1996 |
Olympic Gold - 1996 Light-middleweight; Professional World Champion - WBA Super-Welterweight (1999-2000). |
| Willie Smith |
 RSA |
BOX |
Olympics |
1924 |
Olympic Gold - 1924 Bantamweight; Professional World Champion - British Pro Bantamweight (1927). |
| Leon Spinks |
USA |
BOX |
Olympics |
1976 |
Olympic Gold - 1976 Light-heavyweight; Professional World Champion - Undisputed Heavyweight (1978-1978); WBA Heavyweight (1978-1978). |
| Michael Spinks |
USA |
BOX |
Olympics |
1976 |
Olympic Gold - 1976 Middleweight; Professional World Champion - IBF Heavyweight (1985-1987); IBF Light-Heavyweight (1984-1985); WBC Light-Heavyweight (1983-1985); WBA Light-Heavyweight (1981-1985). |
| Maurizio Stecca |
ITA |
BOX |
Olympics |
1984 |
Olympic Gold - 1984 Bantamweight; Professional World Champion - WBO Featherweight (1989-1989); WBO Featherweight (1991-1992). |
| Frank Tate |
USA |
BOX |
Olympics |
1984 |
Olympic Gold - 1984 Light-middleweight; Professional World Champion - IBF Middleweight (1987-1988). |
| Meldrick Taylor |
USA |
BOX |
Olympics |
1984 |
Olympic Gold - 1984 Featherweight; Professional World Champion - IBF Super-Lightweight (1988-1990); WBA Welterweight (1991-1992). |
| Andre Ward |
USA |
BOX |
Olympics |
2004 |
Olympic Gold - 2004 Light-heavyweight; Professional World Champion - WBA Super-Middleweight (2009- ). |
| Pernell Whitaker |
USA |
BOX |
Olympics |
1984 |
Olympic Gold - 1984 Lightweight; Professional World Champion - WBC Lightweight (1989-1995); IBF Super-Lightweight (1992-1992); WBA Super-Welterweight (1995-1995); WBC Welterweight (1993-1997); WBC,WBA,IBF Lightweight (1990-1992). |
| Vasily Zhirov |
 KAZ |
BOX |
Olympics |
1996 |
Olympic Gold - 1996 Light-heavyweight; Professional World Champion - IBF Cruiserweight (1999-2003). |
| Zou Shiming |
 CHN |
BOX |
Olympics |
2004—2012 |
Olympics - 2004 Light-Flyweight (Bronze) 2008 Light-Flyweight (Gold) 2012 Light-Flyweight (Gold) - WBO Flyweight Champion (2016-2017) |