| Number
| Name
| Reigned period
| Defense
|
| 1
| Hiroki Ioka
| October 18, 1987 - November 13, 1988
| 2
|
| 2
| Napa Kiatwanchai
| November 13, 1988 - November 12, 1989
| 2
|
| 3
| Jum Hwan Choi
| November 12, 1989 - February 7, 1990
| 0
|
| 4
| Hideyuki Ohashi
| February 7, 1990 - December 25, 1990
| 1
|
| 5
| Ricardo Lopez
| October 25, 1990 - September, 1999
| 21
|
| 6
| Wandee Singwancha
| September, 1999 - February 11, 2000
| 0
|
| 7
| José Antonio Aguirre
| February 11, 2000 - January 10, 2004
| 7
|
| 8
| Eagle Den Junlaphan
| January 10, 2004 - December 18, 2004
| 1
|
| 9
| Isaac Bustos
| December 18, 2004 - April 4, 2005
| 0
|
| 10
| Katsunari Takayama
| April 4, 2005 - August 6, 2005
| 0
|
| 11
| Eagle Den Junlaphan
| August 6, 2005 - November 29, 2007
| 4
|
| 12
| Oleydong Sithsamerchai
| November 29, 2007 - Present
| 1
|
| Number
| Name
| Reigned period
| Defense
|
| 1
| Franco Udella
| April 4, 1975 - 1975
| 0
|
| 2
| Luis Estaba
| September 13, 1975 - February 19, 1978
| 11
|
| 3
| Freddy Castillo
| February 19, 1978 - May 6, 1978
| 0
|
| 4
| Netrnoi Sor Vorasingh
| May 6, 1978 - September 30, 1978
| 1
|
| 5
| Sung Jun Kim
| September 30, 1978 - January 3, 1980
| 3
|
| 6
| Shigeo Nakajima
| January 3, 1980 - March 24, 1980
| 0
|
| 7
| Hilario Zapata
| March 24, 1980 - February 6, 1982
| 8
|
| 8
| Amado Ursua
| February 6, 1982 - April 13, 1982
| 0
|
| 9
| Tadashi Tomori
| April 13, 1982 - July 20, 1982
| 0
|
| 10
| Hilario Zapata
| July 20, 1982 - March 26, 1983
| 2
|
| 11
| Jung Koo Chang
| March 26, 1983 - December 11, 1988
| 15
|
| 12
| German Torres
| December 11, 1988 - March 19, 1989
| 0
|
| 13
| Yul Woo Lee
| March 19, 1989 - June 25, 1989
| 0
|
| 14
| Humberto Gonzalez
| June 25, 1989 - December 19, 1990
| 5
|
| 15
| Rolando Pascua
| December 19, 1990 - March 25, 1991
| 0
|
| 16
| Melchor Cob Castro
| March 25, 1991 - June 3, 1991
| 0
|
| 17
| Humberto Gonzalez
| June 3, 1991 - March 13, 1993
| 4
|
| 18
| Michael Carbajal
| March 13, 1993 - February 19, 1994
| 2
|
| 19
| Humberto Gonzalez
| February 19, 1994 - July 15, 1995
| 3
|
| 20
| Saman Sorjaturong
| July 15, 1995 - October 17, 1999
| 10
|
| 21
| Yo Sam Choi
| October 17, 1999 - July 6, 2002
| 3
|
| 22
| Jorge Armando Arce
| July 6, 2002 - December 18, 2004
| 7
|
| 23
| Eric Ortiz
| March 11, 2005 - September 10, 2005
| 0
|
| 24
| Brian Viloria
| September 10, 2005 - August 10, 2006
| 1
|
| 25
| Omar Nino
| August 10, 2006 - November 18, 2006
| 4
|
| 26
| Edgar Sosa
| April 14, 2007, Current
| 5
|
| Number
| Name
| Nationality
| Reigned period
| Defense
|
| 1
| Hiroyuki Ebihara
|
| September 18, 1963 - January 23, 1964
| 0
|
| 2
| Pone Kingpetch
|
| January 23, 1964 - April 23, 1965
| 0
|
| 3
| Salvatore Burruni
|
| April 23, 1965 - June 14, 1966
| 1
|
| 4
| Walter McGowan
|
| June 14, 1966 - December 30, 1966
| 0
|
| 5
| Chartchai Chionoi
|
| December 30, 1966 - February 23, 1969
| 1
|
| 6
| Efren Torres
|
| February 23, 1969 - March 20, 1970
| 0
|
| 7
| Chartchai Chionoi
|
| March 20, 1970 - December 7, 1970
| 0
|
| 8
| Erbito Salavarria
|
| December 7, 1970 - 1972
| 2
|
| 9
| Betulio González
|
| June 3, 1972 - September 29, 1972
| 0
|
| 10
| Venice Borkhorsor
|
| September 29, 1972 - 1973
| 1
|
| 11
| Betulio González
|
| August 4, 1973 - October 1, 1974
| 2
|
| 12
| Shoji Oguma
|
| October 1, 1974 - January 8, 1975
| 0
|
| 13
| Miguel Canto
|
| January 8, 1975 - March 18, 1979
| 14
|
| 14
| Chan Hee Park
|
| March 18, 1979 - September 9, 1979
| 1
|
| 15
| Miguel Canto
|
| September 9, 1979 - 1979
| 0
|
| 16
| Chan Hee Park
|
| December 16, 1979 - May 18, 1980
| 2
|
| 17
| Shoji Oguma
|
| May 18, 1980 - May 12, 1981
| 3
|
| 18
| Antonio Avelar
|
| May 12, 1981 - March 20, 1982
| 1
|
| 19
| Prudencio Cardona
|
| March 20, 1982 - July 24, 1982
| 0
|
| 20
| Freddy Castillo
|
| July 24, 1982 - November 6, 1982
| 0
|
| 21
| Eleoncio Mercedes
|
| November 6, 1982 - March 15, 1983
| 0
|
| 22
| Charlie Magri
|
| March 15, 1983 - September 27, 1983
| 0
|
| 23
| Frank Cedeno
|
| September 27, 1983 - January 18, 1984
| 0
|
| 24
| Koji Kobayashi
|
| January 18, 1984 - April 9, 1984
| 0
|
| 25
| Gabriel Bernal
|
| April 9, 1984 - October 8, 1984
| 1
|
| 26
| Sot Chitalada
|
| October 8, 1984 - July 24, 1988
| 8
|
| 27
| Yong Kang Kim
|
| July 24, 1988 - June 3, 1989
| 2
|
| 28
| Sot Chitalada
|
| June 3, 1989 - February 15, 1991
| 4
|
| 29
| Muangchai Kittikasem
|
| February 15, 1991 - June 23, 1993
| 3
|
| 30
| Yuri Arbachakov
|
| June 23, 1993 - 1997
| 9
|
| 31
| Chatchai Sasakul
|
| May 9, 1997 - December 4, 1998
| 4
|
| 32
| Manny Pacquiao
|
| December 4, 1998 - September 17, 1999
| 1
|
| 33
| Medgoen Singsurat
|
| September 17, 1999 - May 19, 2000
| 1
|
| 34
| Malcolm Tunacao
|
| May 19, 2000 - March 2, 2001
| 1
|
| 35
| Pongsaklek Wonjongkam
|
| March 2, 2001 - July 18, 2007
| 15
|
| 36
| Daisuke Naito
|
| July 18, 2007 - Now
| 2
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Eder Jofre
|
| April 4, 1963 - May 17, 1965
| 2
|
| 2
| Fighting Harada
|
| May 17, 1965 - February 16, 1968
| 4
|
| 3
| Lionel Rose
|
| February 16, 1968 - August 22, 1969
| 3
|
| 4
| Ruben Olivares
|
| August 22, 1969 - October 16, 1970
| 2
|
| 5
| Chucho Castillo
|
| October 16, 1970 - April 2, 1971
| 0
|
| 6
| Ruben Olivares
|
| April 2, 1971 - March 19, 1972
| 3
|
| 7
| Rafael Herrera
|
| March 19, 1972 - July 29, 1972
| 0
|
| 8
| Enrique Pinder
|
| July 29, 1972 - 1973
| 0
|
| 9
| Rafael Herrera
|
| April 14, 1973 - December 7, 1974
| 2
|
| 10
| Rodolfo Martinez
|
| December 7, 1974 - May 8, 1976
| 3
|
| 11
| Carlos Zarate
|
| May 8, 1976 - June 3, 1979
| 9
|
| 12
| Lupe Pintor
|
| June 3, 1979 - May 4, 1985
| 8
|
| 13
| Alberto Davila
|
| September 1, 1983 - May 26, 1984
| 1
|
| 14
| Daniel Zaragoza
|
| May 4, 1985 - August 9, 1985
| 0
|
| 15
| Miguel Lora
|
| August 9, 1985 - October 29, 1988
| 7
|
| 16
| Raul Perez
|
| October 29, 1988 - February 25, 1991
| 7
|
| 17
| Greg Richardson
|
| February 25, 1991 - September 19, 1991
| 1
|
| 18
| Joichiro Tatsuyoshi
|
| September 19, 1991 - September 17, 1992
| 0
|
| 19 (Interim)
| Victor Rabanales
|
| March 30, 1992 - March 28, 1993
| 4
|
| 20
| Jung Il Byun
|
| March 28, 1993 - 1993
| 1
|
| 21 (Interim)
| Joichiro Tatsuyoshi
|
| July 22, 1993 - December 4, 1994
| 0
|
| 22
| Yasuei Yakushiji
|
| December 23, 1993 - July 30, 1995
| 4
|
| 23
| Wayne McCullough
|
| July 30, 1995 - August 10, 1996
| 2
|
| 24
| Sirimongkol Singwangcha
|
| August 10, 1996 - November 22, 1997
| 3
|
| 25
| Joichiro Tatsuyoshi
|
| November 22, 1997 - December 29, 1998
| 2
|
| 26
| Veeraphol Sahaprom
|
| December 29, 1998 - April 16, 2005
| 14
|
| 27
| Hozumi Hasegawa
|
| April 16, 2005 - Now
| 5
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Rigoberto Riasco
|
| April 3, 1976 - October 9, 1976
| 2
|
| 2
| Royal Kobayashi
|
| October 9, 1976 - November 24, 1976
| 0
|
| 3
| Dong Kyun Yum
|
| November 24, 1976 - May 21, 1977
| 1
|
| 4
| Wilfredo Gómez
|
| May 21, 1977 - 1983
| 17
|
| 5
| Jaime Garza
|
| June 15, 1983 - November 3, 1984
| 1
|
| 6
| Juan Meza
|
| November 3, 1984 - August 18, 1985
| 1
|
| 7
| Lupe Pintor
|
| August 18, 1985 - January 18, 1986
| 0
|
| 8
| Samart Payakaroon
|
| January 18, 1986 - May 8, 1987
| 1
|
| 9
| Jeff Fenech
|
| May 8, 1987 - 1987
| 2
|
| 10
| Daniel Zaragoza
|
| February 29, 1988 - April 23, 1990
| 5
|
| 11
| Paul Banke
|
| April 23, 1990 - November 5, 1990
| 1
|
| 12
| Pedro Ruben Decima
|
| November 5, 1990 - February 23, 1991
| 0
|
| 13
| Kiyoshi Hatanaka
|
| February 23, 1991 - June 24, 1991
| 0
|
| 14
| Daniel Zaragoza
|
| June 24, 1991 - March 20, 1992
| 2
|
| 15
| Thierry Jacob
|
| March 20, 1992 - June 23, 1992
| 0
|
| 16
| Tracy Harris Patterson
|
| June 23, 1992 - August 26, 1994
| 4
|
| 17
| Hector Acero Sanchez
|
| August 26, 1994 - November 6, 1995
| 2
|
| 18
| Daniel Zaragoza
|
| November 6, 1995 - September 6, 1997
| 2
|
| 19
| Erik Morales
|
| September 6, 1997 - 2000
| 9
|
| 20
| Willie Jorrin
|
| September 9, 2000 - 2002
| 2
|
| 21
| Oscar Larios
|
| May 17, 2002 - December 12, 2005
| 11
|
| 22
| Israel Vázquez
|
| December 12, 2005 - March 3, 2007
| 2
|
| 23
| Rafael Márquez
|
| March 3, 2007 - August 4, 2007
| 0
|
| 24
| Israel Vázquez
|
| August 4, 2007 - Now
| 1
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Sugar Ramos
|
| March 21, 1963 - September 26, 1964
| 3
|
| 2
| Vicente Saldivar
|
| September 26, 1964 - 1967
| 7
|
| 3
| Howard Winstone
|
| January 23, 1968 - July 24, 1968
| 0
|
| 4
| Jose Legra
| /
| July 24, 1968 - January 21, 1969
| 0
|
| 5
| Johnny Famechon
|
| January 21, 1969 - May 9, 1970
| 2
|
| 6
| Vicente Saldivar
|
| May 9, 1970 - December 11, 1970
| 0
|
| 7
| Kuniaki Shibata
|
| December 11, 1970 - May 19, 1972
| 2
|
| 8
| Clemente Sanchez
|
| May 19, 1972 - December 16, 1972
| 0
|
| 9
| Jose Legra
| /
| December 16, 1972 - May 5, 1973
| 0
|
| 10
| Eder Jofre
|
| May 5, 1973 - 1974
| 1
|
| 11
| Bobby Chacon
|
| September 7, 1974 - June 20, 1975
| 1
|
| 12
| Ruben Olivares
|
| June 20, 1975 - September 20, 1975
| 0
|
| 13
| David Kotei
|
| September 20, 1975 - November 13, 1976
| 2
|
| 14
| Danny Lopez
|
| November 13, 1976 - February 2, 1980
| 8
|
| 15
| Salvador Sanchez
|
| February 2, 1980 - 1982
| 9
|
| 16
| Juan LaPorte
|
| September 15, 1982 - March 31, 1984
| 2
|
| 17
| Wilfredo Gómez
|
| March 31, 1984 - December 8, 1984
| 0
|
| 18
| Azumah Nelson
|
| December 8, 1984 - 1987
| 6
|
| 19
| Jeff Fenech
|
| March 7, 1988 - 1990
| 3
|
| 20
| Marcos Villasana
|
| June 2, 1990 - November 14, 1991
| 3
|
| 19
| Paul Hodkinson
|
| November 14, 1991 - April 28, 1993
| 3
|
| 20
| Gregorio Vargas
|
| April 28, 1993 - December 4, 1993
| 0
|
| 21
| Kevin Kelley
|
| December 4, 1993 - January 7, 1995
| 2
|
| 22
| Alejandro Gonzalez
|
| January 7, 1995 - September 23, 1995
| 2
|
| 23
| Manuel Medina
|
| September 23, 1995 - December 11, 1995
| 0
|
| 24
| Luisito Espinosa
|
| December 11, 1995 - May 15, 1999
| 7
|
| 25
| Cesar Soto
|
| May 15, 1999 - October 22, 1999
| 0
|
| 26
| Naseem Hamed
|
| October 22, 1999 - 2000
| 0
|
| 27
| Guty Espadas Jr.
|
| April 14, 2000 - 2000
| 1
|
| 28
| Erik Morales
|
| September 2, 2000 - June 22, 2002
| 2
|
| 29
| Marco Antonio Barrera
|
| June 22, 2002 - 2002
| 0
|
| 30
| Erik Morales
|
| November 16, 2002 - 2003
| 1
|
| 31
| In Jin Chi
|
| April 10, 2004 - January 29, 2006
| 3
|
| 32 (Interim)
| Humberto Soto
|
| August 20, 2005 - Now
| 0
|
| 33
| Takashi Koshimoto
|
| January 29, 2006 - July 30, 2006
| 0
|
| 34
| Rodolfo Lopez
|
| July 30, 2006 - December 17, 2006
| 0
|
| 35
| Jorge Linares
|
| July 21, 2007 - Now
| 1
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Gabriel "Flash" Elorde
|
| February 16, 1963 - June 15, 1967
| 6
|
| 2
| Yoshiaki Numata
|
| June 15, 1967 - December 14, 1967
| 0
|
| 3
| Hiroshi Kobayashi
|
| December 14, 1967 - October 5, 1968
| 2
|
| 4
| Rene Barrientos
|
| February 15, 1969 - April 5, 1970
| 0
|
| 5
| Yoshiaki Numata
|
| April 5, 1970 - October 10, 1971
| 3
|
| 6
| Ricardo Arredondo
|
| October 10, 1971 - February 28, 1974
| 5
|
| 7
| Kuniaki Shibata
|
| February 28, 1974 - July 5, 1975
| 3
|
| 8
| Alfredo Escalera
|
| July 5, 1975 - January 28, 1978
| 10
|
| 9
| Alexis Arguello
|
| January 28, 1978 - August 9, 1980
| 8
|
| 10
| Rafael Limon
|
| December 11, 1980 - March 8, 1981
| 0
|
| 11
| Cornelius Boza Edwards
|
| March 8, 1981 - August 29, 1981
| 1
|
| 12
| Rolando Navarette
|
| August 29, 1981 - May 29, 1982
| 1
|
| 13
| Rafael Limon
|
| May 29, 1982 - December 11, 1982
| 1
|
| 14
| Bobby Chacon
|
| December 11, 1982 - May 1983
| 1
|
| 15
| Héctor Camacho
|
| August 7, 1983 - 1984
| 1
|
| 16
| Julio César Chávez
|
| September 13, 1984 - August 21, 1987
| 9
|
| 17
| Azumah Nelson
|
| February 29, 1988 - May 7, 1994
| 10
|
| 18
| Jesse James Leija
|
| May 7, 1994 - September 17, 1994
| 0
|
| 19
| Gabriel Ruelas
|
| September 17, 1994 - December 1, 1995
| 2
|
| 20
| Azumah Nelson
|
| December 1, 1995 - March 22, 1997
| 1
|
| 21
| Genaro Hernandez
|
| March 22, 1997 - October 3, 1998
| 3
|
| 22
| Floyd Mayweather Jr.
|
| October 3, 1998 - 2002
| 8
|
| 23
| Sirimongkol Singwancha
|
| August 24, 2002 - August 15, 2003
| 1
|
| 24
| Jesús Chávez
|
| August 15, 2003 - February 28, 2004
| 0
|
| 25
| Erik Morales
|
| February 28, 2004 - November 27, 2004
| 1
|
| 26
| Marco Antonio Barrera
|
| November 27, 2004 - March 17, 2007
| 4
|
| 27
| Juan Manuel Márquez
|
| March 17, 2007 - March 15, 2008
| 1
|
| 28
| Manny Pacquiao
|
| March 15, 2008 - July, 2008 (Vacated)
| 0
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Pedro Carrasco
|
| November 5, 1971 – February 18, 1972
| 0
|
| 2
| Mando Ramos
|
| February 18, 1972 – September 15, 1972
| 2
|
| 3
| Chango Carmona
|
| September 15, 1972 – November 10, 1972
| 0
|
| 4
| Rodolfo Gato González
|
| November 10, 1972 – April 11, 1974
| 4
|
| 5
| Guts Ishimatsu
|
| April 11, 1974 – May 8, 1976
|
|
| 6
| Esteban De Jesús
|
| May 8, 1976 – January 21, 1978
|
|
| 7
| Roberto Durán*
|
| January 21, 1978 – January 21, 1978 (Vacated)
|
|
| 8
| Jim Watt
|
| April 17, 1979 – June 20, 1981
|
|
| 9
| Alexis Argüello
|
| June 20, 1981 – May 22, 1982 (Vacated)
|
|
| 10
| Edwin Rosario
|
| May 1, 1983 – November 3, 1984
|
|
| 11
| José Luis Ramírez
|
| November 3, 1984 – August 10, 1985
|
|
| 12
| Héctor Camacho
|
| August 10, 1985 – September 26, 1986 (Vacated)
|
|
| 13
| José Luis Ramírez
|
| July 19, 1987 – October 29, 1988
|
|
| 14
| Julio César Chávez
|
| October 29, 1988 – May 13, 1989 (Vacated)
|
|
| 15
| Pernell Whitaker
|
| August 20, 1989 – October 5, 1991 (Vacated)
|
|
| 16
| Miguel Ángel González
|
| August 24, 1992 – August 19, 1995 (Vacated)
|
|
| 17
| Jean-Baptiste Mendy
|
| April 20, 1996 – March 1, 1997
|
|
| 18
| Stevie Johnston
|
| March 1, 1997 – June 13, 1998
|
|
| 19
| Cesar Bazan
|
| June 13, 1998 – February 27, 1999
|
|
| 20
| Stevie Johnston
|
| February 27, 1999 – June 17, 2000
|
|
| 21
| José Luis Castillo
|
| June 17, 2000 – April 20, 2002
|
|
| 22
| Floyd Mayweather, Jr.
|
| April 20, 2002 – November 1, 2003 (Vacated)
| 3
|
| 23
| José Luis Castillo
|
| June 5, 2004 – May 7, 2005
|
|
| 24
| Diego Corrales
|
| May 7, 2005 – October 7, 2006
|
|
| 25
| Joel Casamayor
|
| October 7, 2006 – February 20, 2008 (Stripped)
| 1
|
| 26
| David Díaz
|
| February 20, 2007 – June 28, 2008
| 1
|
| 27
| Manny Pacquiao
|
| June 28, 2008 – Present
| 0
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| James McGirt
|
| November 29, 1991 - March 6, 1993
| 2
|
| 2
| Pernell Whitaker
|
| March 6, 1993 - April 12, 1997
| 9
|
| 3
| Oscar de la Hoya
|
| April 12, 1997 - September 18, 1999
| 7
|
| 4
| Felix Trinidad
|
| September 18, 1999 - Vacated
| 0
|
| 5
| Shane Mosley
|
| June 17, 2000 - January 6, 2002
| 3
|
| 6
| Vernon Forrest
|
| January 26, 2002 - January 25, 2003
| 1
|
| 7
| Ricardo Mayorga
|
| January 25, 2003 - December 13, 2003
| 1
|
| 8
| Cory Spinks
|
| December 13, 2003 - February 5, 2005
| 2
|
| 9
| Zab Judah
|
| February 5, 2005 - January 7, 2006
| 1
|
| 10
| Carlos Manuel Baldomir
|
| January 7, 2006 - November 4, 2006
| 1
|
| 11
| Floyd Mayweather Jr.
|
| November 4, 2006 - June 6, 2008 retired
| 1
|
| 12
| Andre Berto
|
| June 21, 2008 - current
| 0
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Terry Downes
|
| July 11, 1961 - April 7, 1962
| 0
|
| 2
| Paul Pender
|
| April 7, 1962 - 1962
| 0
|
| 3
| Dick Tiger
|
| August 10, 1963 - December 7, 1963
| 0
|
| 4
| Joey Giardello
|
| December 7, 1963 - October 21, 1965
| 1
|
| 5
| Dick Tiger
|
| October 21, 1965 - April 25, 1966
| 0
|
| 6
| Emile Griffith
|
| April 25, 1966 - April 17, 1967
| 2
|
| 7
| Nino Benvenuti
|
| April 17, 1967 - September 29, 1967
| 0
|
| 8
| Emile Griffith
|
| September 29, 1967 - March 4, 1968
| 0
|
| 9
| Nino Benvenuti
|
| March 4, 1968 - November 7, 1970
| 4
|
| 10
| Carlos Monzon
|
| November 7, 1970 - 1974
| 9
|
| 11
| Rodrigo Valdez
|
| May 25, 1974 - June 26, 1976
| 4
|
| 12
| Carlos Monzon
|
| June 26, 1976 - November 5, 1977
| 1
|
| 13
| Rodrigo Valdez
|
| November 5, 1977 - April 22, 1978
| 0
|
| 14
| Hugo Corro
|
| April 22, 1978 - June 30, 1979
| 2
|
| 15
| Vito Antuofermo
|
| June 30, 1979 - March 16, 1980
| 0
|
| 16
| Alan Minter
|
| March 16, 1980 - September 27, 1980
| 1
|
| 17
| Marvin Hagler
|
| September 27, 1980 - April 6, 1987
| 12
|
| 18
| Sugar Ray Leonard
|
| April 6, 1987 - 1987
| 0
|
| 19
| Thomas Hearns
|
| October 29, 1987 - June 6, 1988
| 0
|
| 20
| Iran Barkley
|
| June 6, 1988 - February 24, 1989
| 0
|
| 21
| Roberto Duran
|
| February 24, 1989 - 1990
| 0
|
| 22
| Julian Jackson
|
| November 24, 1990 - May 8, 1993
| 4
|
| 23
| Gerald McClellan
|
| May 8, 1993 - 1995
| 3
|
| 24
| Julian Jackson
|
| March 17, 1995 - August 19, 1995
| 0
|
| 25
| Quincy Taylor
|
| August 19, 1995 - March 16, 1996
| 0
|
| 26
| Keith Holmes
|
| March 16, 1996 - May 2, 1998
| 2
|
| 27
| Hassine Cherifi
|
| May 2, 1998 - April 24, 1999
| 0
|
| 28
| Keith Holmes
|
| April 24, 1999 - April 14, 2001
| 2
|
| 29
| Bernard Hopkins
|
| April 14, 2001 - July 16, 2005
| 7
|
| 30
| Jermain Taylor
|
| July 16, 2005 - September 29, 2007
| 4
|
| 30
| Kelly Pavlik
|
| September 29, 2007 - Now
| 0
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Sugar Ray Leonard
| USA
| November 7, 1988 - 1990
| 2
|
| 2
| Mauro Galvano
| Italy
| December 15, 1990 - October 3, 1992
| 2
|
| 3
| Nigel Benn
| GBR
| October 3, 1992 - March 2, 1996
| 9
|
| 4
| Thulane Malinga
| South Africa
| March 2 , 1996 - July 6, 1996
| 0
|
| 5
| Vincenzo Nardiello
| Italy
| July 6, 1996 - October 12, 1996
| 0
|
| 6
| Robin Reid
| GBR
| October 12, 1996 - December 19, 1997
| 3
|
| 7
| Thulane Malinga
| South Africa
| December 19, 1997 - March 27, 1998
| 0
|
| 8
| Richie Woodhall
| GBR
| March 27, 1998 - October 23, 1999
| 2
|
| 9
| Markus Beyer
| Germany
| October 23, 1999 - May 6, 2000
| 1
|
| 10
| Glenn Catley
| GBR
| May 6, 2000 - September 1, 2000
| 0
|
| 11
| Dingaan Thobela
| South Africa
| September 1, 2000 - December 15, 2000
| 0
|
| 12
| Dave Hilton
| Canada
| December 15, 2000 - 2001
| 0
|
| 13
| Eric Lucas
| Canada
| June 10, 2001 - April 5, 2003
| 3
|
| 14
| Markus Beyer
| Germany
| April 5, 2003 - June, 5,2004
| 2
|
| 15
| Christian Sanavia
| Italy
| June 5, 2004 - October 9, 2004
| 0
|
| 16
| Markus Beyer
| Germany
| October 9, 2004 - October 14, 2006
| 3
|
| 17
| Mikkel Kessler
| Denmark
| October 14, 2006 - November 3, 2007
| 1
|
| 18
| Joe Calzaghe
| GBR
| November 3, 2007 - June 27, 2008
| 0
|
| Number
| Name
| Nationality
| Reign period
| Defense
|
| 1
| Willie Pastrano
| USA
| June 1, 1963 - March 30, 1965
| 2
|
| 2
| Jose Torres
| USA
| March 30, 1965 - December 16, 1966
| 3
|
| 3
| Dick Tiger
| USA
| December 16, 1966 - May 24, 1968
| 2
|
| 4
| Bob Foster
| USA
| Nay 24, 1968 - 1974
| 12
|
| 5
| John Conteh
| UK
| October 1, 1974 - 1977
| 3
|
| 6
| Miguel Angel Cuello
| Puerto Rico
| May 21, 1977 - January 8, 1978
| 0
|
| 7
| Mate Parlov
| Yugoslavia
| January 8, 1978 - December 2, 1978
| 1
|
| 8
| Marvin Johnson
| USA
| December 2, 1978 - August 18, 1979
| 0
|
| 9
| Matthew Saad Muhammad
| USA
| August 18, 1979 - December 19, 1981
| 8
|
| 10
| Dwight Qawi
| USA
| December 19, 1981 - March 18, 1983
| 3
|
| 11
| Michael Spinks
| USA
| March 18, 1983 - 1985
| 4
|
| 12
| JB Williamson
| USA
| December 10, 1985 - April 30, 1986
| 0
|
| 13
| Dennis Andries
| UK
| April 30, 1986 - March 7, 1987
| 1
|
| 14
| Thomas Hearns
| USA
| March 7, 1987 - 1987
| 0
|
| 15
| Donnie Lalonde
| Canada
| November 27, 1987 - November 7, 1988
| 1
|
| 16
| Sugar Ray Leonard
| USA
| November 7, 1988 - 1988
| 0
|
| 17
| Dennis Andries
| UK
| February 21, 1989 - June 24, 1989
| 0
|
| 18
| Jeff Harding
| Australia
| June 24, 1989 - July 28, 1990
| 2
|
| 19
| Dennis Andries
| UK
| July 28, 1990 - September 11, 1991
| 2
|
| 20
| Jeff Harding
| Australia
| September 11, 1991 - July 23, 1994
| 2
|
| 21
| Mike McCallum
| Jamaica
| July 23, 1994 - June 16, 1995
| 1
|
| 22
| Fabrice Tiozzo
| France
| June 16, 1995 - 1996
| 1
|
| 23
| Roy Jones Jr.
| USA
| November 22, 1996 - 1998
| 0
|
| 24
| Graciano Rocchigiani
| Germany
| March 21, 1998 - 1998
| 0
|
| 25
| Roy Jones Jr.
| USA
| July 18, 1998 - 2002
| 10
|
| 26
| Antonio Tarver
| USA
|
| 0
|
| 27
| Roy Jones Jr.
| USA
| November 8, 2003 - May 15, 2004
| 0
|
| 28
| Antonio Tarver
| USA
| May 25, 2004 - 2005
| 0
|
| 29
| Tomasz Adamek
| Poland
| May 21, 2005 - February 3, 2007
| 2
|
| 30
| Chad Dawson
| USA
| February 3, 2007 - July 11, 2008
| 3
|
| 31
| Adrian Diaconu
| Romania
| July 11, 2008 - Present
| 0
|
| Number
| Name
| Reign period
| Defense
|
| 1
| Marvin Camel
| March 31, 1980 - November 25, 1980
| 0
|
| 2
| Carlos DeLeon
| November 25, 1980 - June 27, 1982
| 1
|
| 3
| S.T. Gordon
| June 27, 1982 - July 17, 1983
| 1
|
| 4
| Carlos DeLeon
| July 17, 1983 - June 6, 1985
| 3
|
| 5
| Alfonso Ratliff
| June 6, 1985 - September 21, 1985
| 0
|
| 6
| Bernard Benton
| September 21, 1985 - March 22, 1986
| 0
|
| 7
| Carlos DeLeon
| March 22, 1986 - April 9, 1988
| 3
|
| 8
| Evander Holyfield
| April 9, 1988 - 1989
| 0
|
| 9
| Carlos DeLeon
| May 17, 1989 - July 27, 1990
| 3
|
| 10
| Massimiliano Duran
| July 27, 1990 - July 20, 1991
| 1
|
| 11
| Anaclet Wamba
| July 20, 1991 - 1995
| 7
|
| 12
| Marcelo Dominguez
| July 25, 1995 - February 21, 1998
| 5
|
| 13
| Juan Carlos Gómez
| February 21, 1998 - 2002
| 10
|
| 14
| Wayne Braithwaite
| October 11, 2002 - April 2, 2005
| 3
|
| 15
| Jean-Marc Mormeck
| April 2, 2005 - January 7, 2006
| 0
|
| 16
| O'Neil Bell
| January 7, 2006 - March 17, 2007
| 0
|
| 17
| Jean-Marc Mormeck
| March 17, 2007 - November 10, 2007
| 0
|
| 18
| David Haye
| November 10, 2007 - May 12, 2008 vacated
| 1
|
| Number
| Name
| Nationality
| Reigned period
| Defense
|
| 1
| Sonny Liston
|
| 1962 - February 25, 1964
| 1
|
| 2
| Muhammad Ali
|
| February 25, 1964 - May 9, 1967
| 9
|
| 4
| Joe Frazier
|
| February 16, 1970 - January 22, 1973
| 4
|
| 5
| George Foreman
|
| January 22, 1973 - October 30, 1974
| 2
|
| 6
| Muhammad Ali
|
| October 30, 1974 - February 15, 1978
| 10
|
| 7
| Leon Spinks
|
| February 15, 1978 - March 29, 1978
| 0
|
| 8
| Ken Norton
|
| March 29, 1978 - June 9, 1978
| 0
|
| 9
| Larry Holmes
|
| June 9, 1978 - December 11, 1983
| 17
|
| 10
| Tim Witherspoon
|
| March 9, 1984 - August 31, 1984
| 0
|
| 11
| Pinklon Thomas
|
| August 31, 1984 - March 22, 1986
| 1
|
| 12
| Trevor Berbick
|
| March 22, 1986 - November 22, 1986
| 0
|
| 13
| Mike Tyson
|
| November 22, 1986 - February 11, 1990
| 9
|
| 14
| James Douglas
|
| February 11, 1990 - October 25, 1990
| 0
|
| 15
| Evander Holyfield
|
| October 25, 1990 - November 13, 1992
| 3
|
| 16
| Riddick Bowe
|
| November 13, 1992 - December 14, 1992
| 0
|
| 17
| Lennox Lewis
|
| January 14, 1993 - September 24, 1994
| 3
|
| 18
| Oliver McCall
|
| September 24, 1994 - September 2, 1995
| 1
|
| 19
| Frank Bruno
|
| September 2, 1995 - March 16, 1996
| 0
|
| 20
| Mike Tyson
|
| March 16, 1996 - September 24, 1996
| 0
|
| 21
| Lennox Lewis
|
| February 7, 1997 - April 22, 2001
| 9
|
| 22
| Hasim Rahman
|
| April 22, 2001 - November 17, 2001
| 0
|
| 23
| Lennox Lewis
|
| November 17, 2001 - February 6, 2004
| 2
|
| 24
| Vitali Klitschko
|
| April 24, 2004 - November 9, 2005
| 1
|
| (interim)
| Hasim Rahman
|
| August 13, 2005 - November 10, 2005
| 0
|
| 25
| Hasim Rahman
|
| November 10, 2005 - August 12, 2006
| 1
|
| 26
| Oleg Maskaev
|
| August 12, 2006 - March 8, 2008
| 1
|
| (Interim)
| Samuel Peter
|
| September 24, 2007 - March 8, 2008
| 1
|
| 27
| Samuel Peter
|
| March 8, 2008 - October 11, 20008
| 0
|
| 28
| Vitali Klitschko
|
| October 11, 20008 - Present
| 0
|
