| Number |
Champion |
Reign |
| 1 |
Jack Dempsey |
1922 - September 23, 1926 |
| 2 |
Gene Tunney |
September 23, 1926 - July 31, 1928 (Retired) |
| 3 |
Max Schmeling (defeated Jack Sharkey) |
June 12, 1930 - June 21, 1932 |
| 4 |
Jack Sharkey |
June 21, 1932 - June 29, 1933 |
| 5 |
Primo Carnera |
June 29, 1933 - June 14, 1934 |
| 6 |
Max Baer |
June 14, 1934 - June 13, 1935 |
| 7 |
James J. Braddock |
June 13, 1935 - June 22, 1937 |
| 8 |
Joe Louis |
June 22, 1937 - September 27, 1950 |
| 9 |
Ezzard Charles |
September 27, 1950 - July 18, 1951 |
| 10 |
Jersey Joe Walcott |
July 18, 1951 - September 23, 1952 |
| 11 |
Rocky Marciano |
September 23, 1952 - April 27, 1956 (Retired) |
| 12 |
Floyd Patterson (defeated Archie Moore) |
November 30, 1956 - June 26, 1959 |
| 13 |
Ingemar Johansson |
June 26, 1959 - June 20, 1960 |
| 14 |
Floyd Patterson |
June 20, 1960 - September 25, 1962 |
| 15 |
Sonny Liston |
September 25, 1962 - February 25, 1964 |
| 16 |
Muhammad Ali |
February 25, 1964 - March 8, 1971 |
| 17 |
Joe Frazier |
March 8, 1971 - January 22, 1973 |
| 18 |
George Foreman |
January 22, 1973 - October 30, 1974 |
| 19 |
Muhammad Ali |
October 30, 1974 - February 15, 1978 |
| 20 |
Leon Spinks |
February 15, 1978 - September 15, 1978 |
| 21 |
Muhammad Ali |
September 15, 1978 - October 2, 1980 |
| 22 |
Larry Holmes |
October 2, 1980 - September 21, 1985 |
| 23 |
Michael Spinks |
September 21, 1985 - June 27, 1988 |
| 24 |
Mike Tyson |
June 27, 1988 - February 11, 1990 |
| 25 |
James Douglas |
February 11, 1990 - October 25, 1990 |
| 26 |
Evander Holyfield |
October 25, 1990 - Oct. 1990 (discontinued championship policy during Holyfield's reign) |
| 27 |
Lennox Lewis |
2002 - February 6, 2004 (Retired) |
| 28 |
Vitali Klitschko (defeated Corrie Sanders) |
April 24, 2004 - November 9, 2005 (Retired) |
| 29 |
Wladimir Klitschko (defeated Ruslan Chagaev) |
June 20, 2009–present |
| Number |
Champion |
Reign |
| 1 |
Carlos De León (Awarded title by Ring) |
February 3, 1984 - June 6, 1985 |
| 2 |
Alfonzo Ratliff |
June 6, 1985 - September 21, 1985 |
| 3 |
Bernard Benton |
September 21, 1985 - March 22, 1986 |
| 4 |
Carlos De León |
March 22, 1986 - March 30, 1987 (Ring stopped recognizing weight class) |
| 5 |
Jean-Marc Mormeck (Defeated Wayne Braithwaite) |
April 2, 2005 - January 7, 2006 |
| 6 |
O'Neil Bell |
January 7, 2006 - March 17, 2007 |
| 7 |
Jean-Marc Mormeck |
March 17, 2007 - November 10, 2007 |
| 8 |
David Haye |
November 10, 2007 - May 23, 2008 (Moved up to Heavyweight) |
| 9 |
Tomasz Adamek (Defeated Steve Cunningham) |
December 11, 2008 - February 20, 2010 (Moved up to Heavyweight) |
| Number |
Champion |
Reign |
| 1 |
Maxie Rosenbloom |
June 25, 1930 - November 16, 1934 |
| 2 |
Bob Olin |
November 16, 1934 - October 31, 1935 |
| 3 |
John Henry Lewis |
October 31, 1935 - June 1939 (Retired) |
| 4 |
Billy Conn (beat Melio Bettina) |
July 13, 1939 - May 1941 (moved up to Heavyweight) |
| 5 |
Gus Lesnevich (beat Tami Mauriello) |
August 26, 1941 - July 26, 1948 |
| 6 |
Freddie Mills |
July 26, 1948 - January 24, 1950 |
| 7 |
Joey Maxim |
January 24, 1950 - December 17, 1952 |
| 8 |
Archie Moore |
December 17, 1952 - May 12, 1962 (moved up to Heavyweight) |
| 9 |
Harold Johnson (beat Doug Jones) |
May 12, 1962 - June 1, 1963 |
| 10 |
Willie Pastrano |
June 1, 1963 - March 30, 1965 |
| 11 |
José Torres |
March 30, 1965 - December 16, 1966 |
| 12 |
Dick Tiger |
December 16, 1966 - May 24, 1968 |
| 13 |
Bob Foster |
May 24, 1968 - September 16, 1974 (retired) |
| 14 |
Víctor Galíndez |
1979 - November 30, 1979 (lost to Marvin Johnson) |
| 15 |
Matthew Saad Muhammad (awarded title by Ring) |
November 30, 1979 - December 19, 1981 |
| 16 |
Dwight Muhammad Qawi |
December 19, 1981 - March 18, 1983 |
| 17 |
Michael Spinks |
March 18, 1983 - September 21, 1985 (won heavyweight title) |
| 18 |
Roy Jones Jr. |
2001 - May 15, 2004 |
| 19 |
Antonio Tarver |
May 15, 2004 - December 18, 2004 |
| 20 |
Glen Johnson |
December 18, 2004 - June 18, 2005 |
| 21 |
Antonio Tarver |
June 18, 2005 - June 10, 2006 |
| 22 |
Bernard Hopkins |
June 10, 2006 - April 19, 2008 |
| 23 |
Joe Calzaghe |
April 19, 2008 - February 6, 2009 (Retired) |
| 24 |
Jean Pascal (Defeated Chad Dawson) |
August 14, 2010 - May 21, 2011 |
| 25 |
Bernard Hopkins |
May 21, 2011 - present |
| Number |
Champion |
Reign |
| 1 |
Marcel Thil |
1933 - September 23, 1937 (Vacated title) |
| 2 |
Freddie Steele (Awarded title) |
September 23, 1937 - 1938 (Stripped) |
| 3 |
Tony Zale (beat Georgie Abrams) |
November 28, 1941 - July 16, 1947 |
| 4 |
Rocky Graziano |
July 16, 1947 - June 10, 1948 |
| 5 |
Tony Zale |
June 10, 1948 - September 21, 1948 |
| 6 |
Marcel Cerdan |
September 21, 1948 - June 16, 1949 |
| 7 |
Jake LaMotta |
June 16, 1949 - February 14, 1951 |
| 8 |
Sugar Ray Robinson |
February 14, 1951 - July 10, 1951 |
| 9 |
Randy Turpin |
July 10, 1951 - September 12, 1951 |
| 10 |
Sugar Ray Robinson |
September 12, 1951 - December 18, 1952 (Retired) |
| 11 |
Carl Olson (beat Randy Turpin) |
October 21, 1953 - December 9, 1955 |
| 12 |
Sugar Ray Robinson |
December 9, 1955 - January 2, 1957 |
| 13 |
Gene Fullmer |
January 2, 1957 - May 1, 1957 |
| 14 |
Sugar Ray Robinson |
May 1, 1957 - January 22, 1960 |
| 15 |
Paul Pender |
January 22, 1960 - July 11, 1961 |
| 16 |
Terry Downes |
July 11, 1961 - April 7, 1962 |
| 17 |
Paul Pender |
April 7, 1962 - May 7, 1963 (Retired) |
| 18 |
Dick Tiger (Awarded title by Ring) |
May 7, 1963 - December 7, 1963 |
| 19 |
Joey Giardello |
December 7, 1963 - October 21, 1965 |
| 20 |
Dick Tiger |
October 21, 1965 - April 25, 1966 |
| 21 |
Emile Griffith |
April 25, 1966 - April 17, 1967 |
| 22 |
Nino Benvenuti |
April 17, 1967 - September 29, 1967 |
| 23 |
Emile Griffith |
September 29, 1967 - March 4, 1968 |
| 24 |
Nino Benvenuti |
March 4, 1968 - November 7, 1970 |
| 25 |
Carlos Monzón |
November 7, 1970 - August 29, 1977 (Retired) |
| 26 |
Rodrigo Valdez (beat Bennie Briscoe) |
November 5, 1977 - April 22, 1978 |
| 27 |
Hugo Corro |
April 22, 1978 - June 30, 1979 |
| 28 |
Vito Antuofermo |
June 30, 1979 - March 16, 1980 |
| 29 |
Alan Minter |
March 16, 1980 - September 27, 1980 |
| 30 |
Marvelous Marvin Hagler |
September 27, 1980 - April 6, 1987 |
| 31 |
Sugar Ray Leonard |
April 6, 1987 - (retired, then moved up to Super Middleweight) |
| 32 |
Sumbu Kalambay (Awarded title by Ring) |
July 6, 1988 - March 2, 1989 (Ring ceased publication for 7 months) |
| 33 |
Bernard Hopkins |
September 29, 2001 - July 16, 2005 |
| 34 |
Jermain Taylor |
July 16, 2005 - September 29, 2007 |
| 35 |
Kelly Pavlik |
September 29, 2007 – April 17, 2010 |
| 36 |
Sergio Gabriel Martínez |
April 17, 2010 – present |
| Number |
Champion |
Reign |
| 1 |
Oscar Albarado (beat Koichi Wajima) |
June 4, 1974 - January 21, 1975 |
| 2 |
Koichi Wajima |
January 21, 1975 - June 7, 1975 |
| 3 |
Jae-Doo Yuh |
June 7, 1975 - February 17, 1976 |
| 4 |
Koichi Wajima |
February 17, 1976 - May 18, 1976 |
| 5 |
Jose Manuel Duran |
May 18, 1976 - October 8, 1976 |
| 6 |
Miguel Angel Castellini |
October 8, 1976 - March 5, 1977 |
| 7 |
Eddie Gazo |
March 5, 1977 - August 9, 1978 |
| 8 |
Masashi Kudo |
August 9, 1978 - October 24, 1979 |
| 9 |
Ayub Kalule |
October 24, 1979 - June 25, 1981 |
| 10 |
Sugar Ray Leonard |
June 25, 1981 - June 25, 1982 |
| 11 |
Thomas Hearns |
May 1983 - September 1986 |
| 12 |
Oscar De La Hoya (beat Fernando Vargas) |
September 14, 2002 - September 13, 2003 |
| 13 |
Shane Mosley |
September 13, 2003 - March 13, 2004 |
| 14 |
Winky Wright |
March 13, 2004 - November 7, 2005 (moved up to Middleweight) |
| Number |
Champion |
Reign |
| 1 |
Jimmy McLarnin |
1933 - May 28, 1934 |
| 2 |
Barney Ross |
May 28, 1934 - September 17, 1934 |
| 3 |
Jimmy McLarnin |
September 17, 1934 - May 28, 1935 |
| 4 |
Barney Ross |
May 28, 1935 - May 31, 1938 |
| 5 |
Henry Armstrong |
May 31, 1938 - October 4, 1940 |
| 6 |
Fritzie Zivic |
October 4, 1940 - July 29, 1941 |
| 7 |
Freddie Cochrane |
July 29, 1941 - February 1, 1946 |
| 8 |
Marty Servo |
February 1, 1946 - September 25, 1946 (Retired) |
| 9 |
Sugar Ray Robinson (beat Tommy Bell) |
December 20, 1946 - 1951 |
| 10 |
Kid Gavilan (beat Billy Graham) |
August 29, 1951 - October 20, 1954 |
| 11 |
Johnny Saxton |
October 20, 1954 - April 1, 1955 |
| 12 |
Tony DeMarco |
April 1, 1955 - June 10, 1955 |
| 13 |
Carmen Basilio |
June 10, 1955 - March 14, 1956 |
| 14 |
Johnny Saxton |
March 14, 1956 - September 12, 1956 |
| 15 |
Carmen Basilio |
September 12, 1956 - September 23, 1957 (Vacated / Won Middleweight) |
| 16 |
Virgil Akins (beat Vince Martinez) |
June 6, 1958 - December 5, 1958 |
| 17 |
Don Jordan |
December 5, 1958 - May 27, 1960 |
| 18 |
Benny Paret |
May 27, 1960 - April 1, 1961 |
| 19 |
Emile Griffith |
April 1, 1961 - September 30, 1961 |
| 20 |
Benny Paret |
September 30, 1961 - March 24, 1962 |
| 21 |
Emile Griffith |
March 24, 1962 - March 21, 1963 |
| 22 |
Luis Manuel Rodríguez |
March 21, 1963 - June 8, 1963 |
| 23 |
Emile Griffith |
June 8, 1963 - April 25, 1966 (Vacated / Won Middleweight) |
| 24 |
Curtis Cokes (beat Jean Josselin) |
November 28, 1966 - April 18, 1969 |
| 25 |
José Nápoles |
April 18, 1969 - December 3, 1970 |
| 26 |
Billy Backus |
December 3, 1970 - June 4, 1971 |
| 27 |
José Nápoles |
June 4, 1971 - December 6, 1975 |
| 28 |
John Stracey |
December 6, 1975 - June 22, 1976 |
| 29 |
Carlos Palomino |
June 22, 1976 - January 14, 1979 |
| 30 |
Wilfred Benítez |
January 14, 1979 - November 30, 1979 |
| 31 |
Sugar Ray Leonard |
November 30, 1979 - June 20, 1980 |
| 32 |
Roberto Durán |
June 20, 1980 - November 25, 1980 |
| 33 |
Sugar Ray Leonard |
November 25, 1980 - November 9, 1982 (Retired) |
| 34 |
Donald Curry (defeated Milton McCrory) |
December 6, 1985 - September 27, 1986 |
| 35 |
Lloyd Honeyghan |
September 27, 1986 - October 27, 1987 |
| 36 |
Jorge Vaca |
October 27, 1987 - March 29, 1988 |
| 37 |
Lloyd Honeyghan |
March 29, 1988 - February 4, 1989 |
| 38 |
Marlon Starling |
February 4, 1989 - March 2, 1989 (Ring ceased publication for 7 months) |
| 39 |
Vernon Forrest (beat Shane Mosley) |
January 26, 2002 - January 25, 2003 |
| 40 |
Ricardo Mayorga |
January 25, 2003 - December 13, 2003 |
| 41 |
Cory Spinks |
December 13, 2003 - February 5, 2005 |
| 42 |
Zab Judah |
February 5, 2005 - January 7, 2006 |
| 43 |
Carlos Manuel Baldomir |
January 7, 2006 - November 4, 2006 |
| 44 |
Floyd Mayweather Jr. |
November 4, 2006 - June 29, 2008 (Retired) |
| Number |
Champion |
Reign |
| 1 |
Duilio Loi |
December 15, 1962 - January 1963 (Retired) |
| 2 |
Eddie Perkins |
1963 - January 18, 1965 |
| 3 |
Carlos Hernández |
January 18, 1965 - April 29, 1966 |
| 4 |
Sandro Lopopolo |
April 29, 1966 - April 30, 1967 |
| 5 |
Takeshi Fuji |
April 30, 1967 - December 12, 1968 |
| 6 |
Nicolino Locche |
December 12, 1968 - March 10, 1972 |
| 7 |
Alfonso Frazer |
March 10, 1972 - October 28, 1972 |
| 8 |
Antonio Cervantes |
October 28, 1972 - March 6, 1976 |
| 9 |
Wilfred Benítez |
March 6, 1976 - January 14, 1979 (won welterweight title) |
| 10 |
Antonio Cervantes |
1979 - August 2, 1980 |
| 11 |
Aaron Pryor |
August 2, 1980 - October 26, 1983 (Retired) |
| 12 |
Kostya Tszyu (beat Zab Judah) |
November 3, 2001 - June 4, 2005 |
| 13 |
Ricky Hatton |
June 4, 2005 - May 2, 2009 |
| 14 |
Manny Pacquiao |
May 2, 2009 - July 23, 2010 (Vacated) |
| Number |
Champion |
Reign |
| 1 |
Barney Ross |
June 23,1933 - 1933 (Vacated / Moved up to Jr. Welterweight) |
| 2 |
Tony Canzoneri (beat Lou Ambers) |
May 10, 1935 - September 3, 1936 |
| 3 |
Lou Ambers |
September 3, 1936 - August 17, 1938 |
| 4 |
Henry Armstrong |
August 17, 1938 - August 22, 1939 |
| 5 |
Lou Ambers |
August 22, 1939 - May 10, 1940 |
| 6 |
Lew Jenkins |
May 10, 1940 - December 19, 1941 |
| 7 |
Sammy Angott |
December 19, 1941 - November 13, 1942 (Retired) |
| 8 |
Ike Williams (beat Bob Montgomery) |
August 4, 1947 - May 25, 1951 |
| 9 |
Jimmy Carter |
May 25, 1951 - May 14, 1952 |
| 10 |
Lauro Salas |
May 14, 1952 - October 15, 1952 |
| 11 |
Jimmy Carter |
October 15, 1952 - March 5, 1954 |
| 12 |
Paddy DeMarco |
March 5, 1954 - November 17, 1954 |
| 13 |
Jimmy Carter |
November 17, 1954 - June 29, 1955 |
| 14 |
Wallace (Bud) Smith |
June 29, 1955 - August 24, 1956 |
| 15 |
Joe Brown |
August 24, 1956 - April 21, 1962 |
| 16 |
Carlos Ortiz |
April 21, 1962 - April 10, 1965 |
| 17 |
Ismael Laguna |
April 10, 1965 - November 13, 1965 |
| 18 |
Carlos Ortiz |
November 13, 1965 - June 29, 1968 |
| 19 |
Carlos Cruz |
June 29, 1968 - February 18, 1969 |
| 20 |
Mando Ramos |
February 18, 1969 - March 3, 1970 |
| 21 |
Ismael Laguna |
March 3, 1970 - September 26, 1970 |
| 22 |
Ken Buchanan |
September 26, 1970 - June 26, 1972 |
| 23 |
Roberto Durán |
June 26, 1972 - February 2, 1979 (moved up to Welterweight) |
| 24 |
Jim Watt (Awarded title by Ring) |
April 12, 1981 - June 20, 1981 |
| 25 |
Alexis Argüello |
June 20, 1981 - February 1983 (moved up to Junior Welterweight) |
| 26 |
Julio César Chávez (beat José Luis Ramírez) |
October 29, 1988 - March 2, 1989 (Ring vacated title) |
| 27 |
Pernell Whitaker (beat Juan Nazario) |
August 11, 1990 - January 14, 1992 (moved up to Junior Welterweight) |
| 28 |
Floyd Mayweather Jr. (beat José Luis Castillo) |
April 20, 2002 - May 22, 2004 (moved up to Junior Welterweight) |
| 29 |
José Luis Castillo (beat Juan Lazcano) |
June 5, 2004 - May 7, 2005 |
| 30 |
Diego Corrales |
May 7, 2005 - October 7, 2006 |
| 31 |
Joel Casamayor |
October 7, 2006 - September 13, 2008 |
| 32 |
Juan Manuel Márquez |
September 13, 2008 – present |
| Number |
Champion |
Reign |
| 1 |
Flash Elorde |
1963 - June 15, 1967 |
| 2 |
Yoshiaki Numata |
June 15, 1967 - December 14, 1967 |
| 3 |
Hiroshi Kobayashi |
December 14, 1967 - July 29, 1971 |
| 4 |
Alfredo Marcano |
July 29, 1971 - April 25, 1972 |
| 5 |
Ben Villaflor |
April 25, 1972 - March 13, 1973 |
| 6 |
Kuniaki Shibata |
March 13, 1973 - October 17, 1973 |
| 7 |
Ben Villaflor |
October 17, 1973 - October 16, 1976 |
| 8 |
Samuel Serrano |
October 16, 1976 - August 2, 1980 |
| 9 |
Yasutsune Uehara |
August 2, 1980 - April 9, 1981 |
| 10 |
Samuel Serrano |
April 9, 1981 - January 19, 1983 |
| 11 |
Roger Mayweather |
January 19, 1983 - February 26, 1984 |
| 12 |
Rocky Lockridge |
February 26, 1984 - May 19, 1985 |
| 13 |
Wilfredo Gómez |
May 19, 1985 - May 24, 1986 |
| 14 |
Alfredo Layne |
May 24, 1986 - September 27, 1986 |
| 15 |
Brian Mitchell |
September 27, 1986 - March 30, 1987 |
| 16 |
Manny Pacquiao (beat Juan Manuel Márquez) |
March 15, 2008 - July 2008 (Moved up to lightweight) |
| Number |
Champion |
Reign |
| 1 |
Kid Chocolate |
1933 - |
| 2 |
Freddie Miller |
1935 - May 11, 1936 |
| 3 |
Petey Sarron |
May 11, 1936- October 29, 1937 |
| 4 |
Henry Armstrong |
October 29, 1937 - December 5, 1938 (Vacated) |
| 5 |
Joey Archibald (beat Leo Rodak) |
April 18, 1939 - May 20, 1940 |
| 6 |
Harry Jeffra |
May 20, 1940 - May 12, 1941 |
| 7 |
Joey Archibald |
May 12, 1941 - September 11, 1941 |
| 8 |
Chalky Wright |
September 11, 1941 - November 20, 1942 |
| 9 |
Willie Pep |
November 20, 1942 - October 29, 1948 |
| 10 |
Sandy Saddler |
October 29, 1948 - February 11, 1949 |
| 11 |
Willie Pep |
February 11, 1949 - September 8, 1950 |
| 12 |
Sandy Saddler |
September 8, 1950 - January 21, 1957 (Retired) |
| 13 |
Hogan Bassey (beat Cherif Hamia) |
June 24, 1957 - March 18, 1959 |
| 14 |
Davey Moore |
March 18, 1959 - March 21, 1963 |
| 15 |
Sugar Ramos |
March 21, 1963 - September 26, 1964 |
| 16 |
Vicente Saldivar |
September 26, 1964 - October 14, 1967 (Retired) |
| 17 |
Johnny Famechon (beat José Legrá) |
January 21, 1969 - May 9, 1970 |
| 18 |
Vicente Saldivar |
May 9, 1970 - December 11, 1970 |
| 19 |
Kuniaki Shibata |
December 11, 1970 - May 19, 1972 |
| 20 |
Clemente Sanchez |
May 19, 1972 - December 16, 1972 (Vacated) |
| 21 |
Alexis Argüello (beat Rigoberto Riasco) |
May 31,1976 - June 20, 1977 (Vacated/Moved to Jr. Lightweight) |
| 22 |
Danny Lopez (beat Roberto Castañón) |
March 10, 1979 - February 2, 1980 |
| 23 |
Salvador Sánchez |
February 2, 1980 - August 12, 1982 (Died in car accident) |
| 24 |
Eusebio Pedroza (Awarded title by Ring) |
September 22, 1982 - June 8, 1985 |
| 25 |
Barry McGuigan |
June 8, 1985 - June 23, 1986 |
| 26 |
Steve Cruz |
June 23, 1986 - March 6, 1987 |
| 27 |
Antonio Esparragoza |
March 6, 1987 - March 2, 1989 (Ring stopped recognizing champs) |
| 28 |
Marco Antonio Barrera (beat Erik Morales) |
June 22, 2002 - November 15, 2003 |
| 29 |
Manny Pacquiao |
November 15, 2003 - March 19, 2005 (Moved up to junior lightweight) |
| Number |
Champion |
Reign |
| 1 |
Al Brown |
1933 - |
| 2 |
Baltazar Sangchili |
1935 - |
| 3 |
Sixto Escobar |
1937 - September 23, 1937 |
| 4 |
Harry Jeffra |
September 23, 1937 - February 20, 1938 |
| 5 |
Sixto Escobar |
February 20, 1938 - October 4, 1939 (Vacated) |
| 6 |
Lou Salica (beat Tommy Forte) |
January 13, 1941 - August 7, 1942 |
| 7 |
Manuel Ortiz |
August 7, 1942 - January 6, 1947 |
| 8 |
Harold Dade |
Januray 6, 1947 - March 11, 1947 |
| 9 |
Manuel Ortiz |
March 11, 1947 - May 31, 1950 |
| 10 |
Vic Toweel |
May 31, 1950 - November 15, 1952 |
| 11 |
Jimmy Carruthers |
November 15, 1952 - May 16, 1954 (Retired) |
| 12 |
Robert Cohen (beat Chamrern Songkitrat) |
September 19, 1954 - June 29, 1956 |
| 13 |
Mario D'Agata |
June 29, 1956 - April 1, 1957 |
| 14 |
Alphonse Halimi |
April 1, 1957 - July 8, 1959 |
| 15 |
Jose Becerra |
July 8, 1959 - August 30, 1960 (Retired) |
| 16 |
Eder Jofre (beat Piero Rollo) |
March 25, 1961 - May 17, 1965 |
| 17 |
Fighting Harada |
May 17, 1965 - February 26, 1968 |
| 18 |
Lionel Rose |
February 26, 1968 - August 22, 1969 |
| 19 |
Rubén Olivares |
August 22, 1969 - October 16, 1970 |
| 20 |
Chucho Castillo |
October 16, 1970 - April 2, 1971 |
| 21 |
Rubén Olivares |
April 2, 1971 - March 19, 1972 |
| 22 |
Rafael Herrera |
March 19, 1972 - July 30, 1972 |
| 23 |
Enrique Pinder |
July 30, 1972 - January 30, 1973 |
| 24 |
Romeo Anaya |
January 20, 1973 - November 3, 1973 |
| 25 |
Arnold Taylor |
November 3, 1973 - July 3, 1974 |
| 26 |
Soo Hwan Hong |
July 3, 1974 - March 14, 1975 |
| 27 |
Alfonso Zamora |
March 14, 1975 - November 19, 1977 |
| 28 |
Jorge Luján |
November 19, 1977 - August 29, 1980 |
| 29 |
Julian Solís |
August 29, 1980 - November 14, 1980 |
| 30 |
Jeff Chandler |
November 14, 1980 - April 7, 1984 |
| 31 |
Richie Sandoval |
April 7, 1984 - March 10, 1986 |
| 32 |
Gaby Canizales |
March 10, 1986 - June 4, 1986 |
| 33 |
Bernardo Pinango |
June 4, 1986 - March 1987 (moved up to junior featherweight) |
| Number |
Champion |
Reign |
| 1 |
Pancho Villa |
June 18, 1923 - September 24, 1925 |
| 2 |
Fidel LaBarba (Defeated Elky Clark) |
January 21, 1927 - August 23, 1927 (Retired) |
| 3 |
Benny Lynch (Defeated Small Montana) |
January 19, 1937 - June 29, 1938 (Vacated/Missed weight) |
| 4 |
Peter Kane (Defeated Jackie Jurich) |
September 22, 1938 - June 19, 1943 |
| 5 |
Jackie Paterson |
June 19, 1943 - March 23, 1948 |
| 6 |
Rinty Monaghan |
March 23, 1948 - April 25, 1950 (Retired) |
| 7 |
Terry Allen (Defeated Honore Pratesi) |
April 25, 1950 - August 1, 1950 |
| 8 |
Dado Marino |
August 1, 1950 - May 19, 1952 |
| 9 |
Yoshio Shirai |
May 19, 1952 - November 26, 1954 |
| 10 |
Pascual Perez |
November 26, 1954 - April 16, 1960 |
| 11 |
Pone Kingpetch |
April 16, 1960 - October 10, 1962 |
| 12 |
Fighting Harada |
October 10, 1962 - January 12, 1963 |
| 13 |
Pone Kingpetch |
January 12, 1963 - September 18, 1963 |
| 14 |
Hiroyuki Ebihara |
September 18, 1963 - January 23, 1964 |
| 15 |
Pone Kingpetch |
January 23, 1964 - April 23, 1965 |
| 16 |
Salvatore Burruni |
April 23, 1965 - June 14, 1966 |
| 17 |
Walter McGowan |
June 14, 1966 - December 30, 1966 |
| 18 |
Chartchai Chionoi |
December 30, 1966 - February 23, 1969 |
| 19 |
Efren Torres |
February 23, 1969 - March 20, 1970 |
| 20 |
Chartchai Chionoi |
March 20, 1970 - December 7, 1970 |
| 21 |
Erbito Salavarria |
December 7, 1970 - February 9, 1973 |
| 22 |
Venice Borkorsor |
February 9, 1973 - July 10, 1973 (Vacated/Moved to Bantamweight) |
| 23 |
Miguel Canto (Defeated Shoji Oguma) |
January 8, 1975 - March 18, 1979 |
| 24 |
Chan-Hee Park |
March 18, 1979 - May 18, 1980 |
| 25 |
Shoji Oguma |
May 18, 1980 - May 12, 1981 |
| 26 |
Antonio Avelar |
May 12, 1981 - March 20, 1982 |
| 27 |
Prudencio Cardona |
March 20, 1982 - July 24, 1982 |
| 28 |
Freddy Castillo |
July 24, 1982 - November 6, 1982 |
| 29 |
Eleoncio Mercedes |
November 6, 1982 - March 15, 1983 |
| 30 |
Charlie Magri |
March 15, 1983 - September 27, 1983 |
| 31 |
Frank Cedeno |
September 27, 1983 - January 18, 1984 |
| 32 |
Koji Kobayashi |
January 18, 1984 - April 9, 1984 |
| 33 |
Gabriel Bernal |
April 9, 1984 - October 8, 1984 |
| 34 |
Sot Chitalada |
October 8, 1984 - July 24, 1988 |
| 35 |
Yong-Kang Kim |
July 24, 1988 - March 2, 1989 (The Ring ceased awarding belts) |
| 36 |
Pongsaklek Wonjongkam (Defeated Kōki Kameda) |
March 27, 2010 – present |