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This is a list of WBO world champions, showing every world champion certified by the World Boxing Organization (WBO). The WBO is one of the four major governing bodies in professional boxing, and has awarded world championships in 17 different weight classes since 1989.

Current champion
Most consecutive title defenses
r Champion relinquished title.
s Champion is stripped of title.
p Champion is promoted to Super.

Heavyweight

No. Name Date Defenses
1 Italy Francesco Damiani
(def. Johnny du Plooy)
6 May 1989 1
2 United States Ray Mercer 11 January 1991 – December 2011s 1
Mercer was stripped of the title in December 1991 for signing for a bout against Larry Holmes instead of mandatory challenger Michael Moorer.[1]
3 United States Michael Moorer
(def. Bert Cooper)
15 May 1992 – 8 February 1993r 0
Moorer vacated the title so that he could be ranked by other sanctioning bodies.
4 United States Tommy Morrison
(def. George Foreman)
7 June 1993 1
5 United Kingdom Michael Bentt 29 October 1993 0
6 United Kingdom Herbie Hide 19 March 1994 0
7 United States Riddick Bowe 11 March 1995 – 1995r 1
Bowe vacated the title to pursue a rematch with Evander Holyfield.
8 United Kingdom Henry Akinwande
def. Jeremy Williams
29 June 1996 – 29 January 1997r 2
Akinwande vacated the title at the request of the WBC to become the mandatory challenger of the upcoming fight between Lennox Lewis and Oliver McCall for the vacant belt.[2]
9 United Kingdom Herbie Hide (2)
(def. Tony Tucker)
28 June 1997 2
10 Ukraine Vitali Klitschko 26 June 1999 2
11 United States Chris Byrd 1 April 2000 0
12 Ukraine Wladimir Klitschko 14 October 2000 5
13 South Africa Corrie Sanders 8 March 2003 – December 2003r 0
Sanders vacated the title to concentrate on a challenge for the WBC belt against Vitali Klitschko.
14 United States Lamon Brewster
(def. Wladimir Klitschko)
10 April 2004 3
15 Belarus Siarhei Liakhovich 1 April 2006 0
16 United States Shannon Briggs 4 November 2006 0
17 Russia Sultan Ibragimov 2 June 2007 1
18 Ukraine Wladimir Klitschko (2) 23 February 2008 14
19 United Kingdom Tyson Fury 28 November 2015 – 12 October 2016r 0
Fury, who had previously withdrawn from a rematch against Wladimir Klitschko before testing positive in a Voluntary Anti-Doping Association (VADA) test for cocaine on 29 September, vacated the title on 12 October 2016 after testing positive a second time, citing his need to focus on treatment for depression.[3]
20 New Zealand Joseph Parker
(def. Andy Ruiz Jr.)
10 December 2016 2
21 United Kingdom Anthony Joshua 31 March 2018 1
22 United States Andy Ruiz Jr. 1 June 2019 0
23 United Kingdom Anthony Joshua (2) 7 December 2019 – present 1

Junior heavyweight

This weight class is designated as cruiserweight by the WBA, WBC, and IBF.

No. Name Date Defenses
1 United States Boone Pultz
(def. Magne Havnå)
3 December 1989 0
2 Norway Magne Havnå 17 May 1990 – 15 February 1991s 2
Havnå's last defense was against Tyrone Booze on 15 February 1991 in Randers, Denmark.
3 United States Tyrone Booze
(def. Derek Angol)
25 July 1992 1
4 Germany Markus Bott 13 February 1993 0
5 Argentina Nestor Hipolito Giovannini 26 June 1993 1
6 Poland Dariusz Michalczewski 17 December 1994 – March 1995r 0
Michalczewski vacated the title in favor of the WBO Light Heavyweight title, which he already held.
7 Germany Ralf Rocchigiani
(def. Carl Thompson)
10 June 1995 6
8 United Kingdom Carl Thompson 4 October 1997 2
9 United Kingdom Johnny Nelson 27 March 1999 – 22 September 2006r 13
Nelson retired after suffering a back injury during training camp for his bout against Enzo Maccarinelli.[4]
10 United Kingdom Enzo Maccarinelli
(interim champ promoted)
September 2006 4
11 United Kingdom David Haye 8 March 2008 – 12 May 2008r 0
Haye vacates the title to move up to heavyweight
12 Argentina Victor Emilio Ramírez
interim champion promoted
February 2009 1
13 Germany Marco Huck 5 December 2009 13
14 Poland Krzysztof Głowacki 14 August 2015 1
15 Ukraine Oleksandr Usyk 17 September 2016 – 5 June 2019r 6
Usyk vacated the title to move up to heavyweight.[5]
16 Poland Krzysztof Głowacki (2)
(interim champ promoted)
5 June 2019 0
17 Latvia Mairis Briedis 15 June 2019 – 25 November 2019s 0
Briedis stripped of title for not agreeing on an immediate rematch with Glowacki.[6]
18 United Kingdom Lawrence Okolie
(def. Krzysztof Głowacki)
20 March 2021 – present 0

Light heavyweight

No. Name Date Defenses
1 United States Michael Moorer
(def. Ramzi Hassan)
3 December 1988 – 1991r 9
Moorer vacated the title to move up to heavyweight.
2 United States Leeonzer Barber
(def. Tom Collins)
9 May 1991 4
3 Poland Dariusz Michalczewski 10 September 1994 23
4 Mexico Julio César González 10 October 2003 0
5 Hungary Zsolt Erdei 17 January 2004 – 13 November 2009r 11
Erdei vacated the title to move up to cruiserweight.
6 Germany Jürgen Brähmer
(interim champ promoted)
13 November 2009 – 19 May 2011s 2
Brähmer was stripped of the title after withdrawing from a bout against Nathan Cleverly, citing an eye injury.[7]
7 United Kingdom Nathan Cleverly
(interim champ promoted)
19 May 2011 5
8 Russia Sergey Kovalev 18 August 2013 8
9 United States Andre Ward 19 November 2016 – 21 September 2017r 1
Ward retires.[8]
10 Russia Sergey Kovalev (2)
(def. Vyacheslav Shabranskyy)
25 November 2017 1
11 Colombia Eleider Álvarez 4 August 2018 0
12 Russia Sergey Kovalev (3) 2 February 2019 1
13 Mexico Canelo Álvarez 2 November 2019 – 17 December 2019r 0
Álvarez vacated on December 17 to move back down to his current preferred weight division.[9]
14 United States Joe Smith Jr.
(def. Maxim Vlasov)
10 April 2021 – present 0

Super middleweight

No. Name Date Defenses
1 United States Thomas Hearns
(def. James Kinchen)
4 November 1988 – 1990r 2
Hearns vacates the title
2 United Kingdom Chris Eubank
(def. Michael Watson)
21 September 1991 14
3 Republic of Ireland Steve Collins 18 March 1995 – October 1997s 7
Collins was stripped of the title in october 1997 after suffering a leg injury during training camp and subsequently withdrawing from his bout against Joe Calzaghe.[10]
4 United Kingdom Joe Calzaghe
(def. Chris Eubank)
11 October 1997 – 26 September 2008r 21
Calzaghe, citing difficulty making weight, vacated the title after moving up to light heavyweight.[11]
5 Russia Denis Inkin
(def. Fulgencio Zuniga)
27 September 2008 0
6 Hungary Károly Balzsay 10 January 2009 1
7 Germany Robert Stieglitz 22 August 2009 6
8 Germany Arthur Abraham 25 August 2012 1
9 Germany Robert Stieglitz (2) 23 March 2013 2
10 Germany Arthur Abraham (2) 1 March 2014 5
11 Mexico Gilberto Ramírez 9 April 2016 – 13 May 2019r 5
Ramírez vacates the title to move up to light heavyweight.[12]
12 United Kingdom Billy Joe Saunders
(def. Shefat Isufi)
18 May 2019 2
13 Mexico Canelo Álvarez
8 May 2021 – present 0

Middleweight

No. Name Date Defenses
1 United States Doug DeWitt
(def. Robbie Sims)
18 April 1989 1
2 United Kingdom Nigel Benn 29 April 1990 1
3 United Kingdom Chris Eubank 18 November 1990 – 21 September 1991r 3
Eubank vacates the title to move up to super middleweight.
4 United States Gerald McClellan
(def. John Mugabi)
20 November 1991 – 24 February 1992r 0
McClellan vacates the title to move up to super middleweight.
5 United Kingdom Chris Pyatt
(def. Sumbu Kalambay)
19 May 1993 2
6 Republic of Ireland Steve Collins 11 May 1994 – 18 March 1995r 0
Collins vacates the title to move up to super middleweight.
7 United States Lonnie Bradley
(def. David Mendez)
19 May 1995 – 1997r 6
Bradley vacates the title to have eye surgery to repair a detached retina.
8 Jamaica Otis Grant
(def. Ryan Rhodes)
13 December 1997 – 14 November 1998r 1
Grant vacates the title to move up to light heavyweight and challenge Roy Jones Jr..[13]
9 Germany Bert Schenk
(def. Freeman Barr)
30 January 1999 – 1999r 1
Schenk vacates the title due to achilles injury.
10 United Kingdom Jason Matthews
(def. Ryan Rhodes)
17 July 1999 0
11 Sweden Armand Krajnc 27 November 1999 3
Krajnc vacated the title on 4 June 2001, while in a dispute with Universum Box-Promotion; However the WBO unanimously voted on 17 September 2001 that Krajnc never actually vacated and remained as WBO champion.
12 Namibia Harry Simon 6 April 2002 – November 2002r 0
Title is vacated because Simon is sentenced to prison due to his role in fatal car crash.
13 Argentina Héctor Javier Velazco
(def. Andras Galfi)
10 May 2003 0
14 Germany Felix Sturm 13 September 2003 1
15 United States Oscar De La Hoya 5 June 2004 0
16 United States Bernard Hopkins 18 September 2004 1
17 United States Jermain Taylor 16 July 2005 3
18 United States Kelly Pavlik 29 September 2007 3
19 Argentina Sergio Gabriel Martínez 17 April 2010 – 29 May 2010s 0
Martínez, who held the WBC super welterweight title at the time he defeated unified middleweight world champion Kelly Pavlik, was stripped of the WBO middleweight title because he missed the WBO's deadline to decide on which weight class he would continue to fight in.[14]
20 Russia Dmitry Pirog
(def. Daniel Jacobs)
31 July 2010 – 25 August 2012 3
Pirog stripped of title August 2012 after being unable to defend due to back injury.
21 Cameroon Hassan N'Dam N'Jikam
(interim champ promoted)
25 August 2012 0
22 United States Peter Quillin 20 October 2012 – 4 September 2014r 3
Quillin vacated the title after pulling out of his scheduled bout against mandatory challenger Matt Korobov.[15]
23 Republic of Ireland Andy Lee
(def. Matt Korobov)
13 December 2014 1
24 United Kingdom Billy Joe Saunders 19 December 2015 – 11 October 2018r 3
Saunders tested positive for the banned stimulant oxilofrine before his bout against mandatory challenger Demetrius Andrade and vacated the title citing his lack of time to appeal.[16]
25 United States Demetrius Andrade
(def. Walter Kautondokwa)
20 October 2018 – present 4

Junior middleweight

No. Name Date Defenses
1 United States John David Jackson
(def. Lupe Aquino)
8 December 1988 – 17 February 1990r 1
Title is vacated after an incorrect NC call in his bout against Martin Camara
2 United States John David Jackson (2)
(def. Chris Pyatt)
23 October 1990– 1993r 3
3 Belize Verno Phillips
(def. Lupe Aquino)
30 October 1993 4
4 United Kingdom Paul Jones 22 November 1995 – 26 February 1996s 0
Jones was stripped of the title after withdrawing from a bout against no. 1 contender Bronco McKarton.[17]
5 United States Bronco McKart
(def. Santos Cardona)
1 March 1996 0
6 United States Winky Wright 17 May 1996 3
7 Namibia Harry Simon 22 August 1998 – 21 July 2001r 4
Simon vacates the title to move up to middleweight.
8 Puerto Rico Daniel Santos
(def. Yori Boy Campas)
16 March 2002 4
9 Ukraine Sergiy Dzindziruk 3 December 2005 – 5 October 2011s 6
Dzindziruk was stripped of the title due to inactivity caused by injuries.
10 Russia Zaurbek Baysangurov
(interim champ promoted)
5 October 2011 – June 2013s 2
Baysangurov was stripped of the title in July 2013 after withdrawing from a bout against mandatory challenger Demetrius Andrade.[18]
11 United States Demetrius Andrade
(def. Vanes Martirosyan)
9 November 2013 – 31 July 2015s 1
Andrade was stripped of the title due to inactivity.[19]
12 United Kingdom Liam Smith
(def. John Thompson)
10 October 2015 2
13 Mexico Canelo Álvarez 17 September 2016 – 19 May 2017r 0
Álvarez vacates the title to move up to middleweight
14 Puerto Rico Miguel Cotto
(def. Yoshihiro Kamegai)
26 August 2017 0
15 United States Sadam Ali 2 December 2017 0
16 Mexico Jaime Munguia 12 May 2018 – 23 November 2019r 5
Munguia vacates the title to move up to middleweight
17 Brazil Patrick Teixeira
(interim champ promoted)
4 December 2019 0
18 Argentina Brian Castaño 13 February 2021 – present 0

Welterweight

No. Name Date Defenses
1 Mexico Genaro Léon
(def. Danny Garcia)
6 May 1989 – 15 December 1989r 0
Léon vacates the title
2 United States Manning Galloway
(def. Al Hamza)
15 December 1989 7
3 Denmark Gert Bo Jacobsen 12 February 1993 – October 1993s 0
Jacobsen was stripped of the title after withdrawing from a bout against Eamonn Loughran due to suffering from the flu.[20]
4 Republic of Ireland Eamonn Loughran
(def. Lorenzo Smith)
16 October 1993 5
5 Mexico José Luis López 13 April 1996 – November 1996s 1
López was stripped of the title after testing positive for marijuana.[21]
6 Romania Mihai Leu
(def. Santiago Samaniego)
22 February 1997 – 1997r 1
Leu retires
7 Russia Ahmed Kotiev
(def. Leonard Townsend)
14 February 1998 4
8 Puerto Rico Daniel Santos 6 May 2000 – 21 July 2001r 2
Title is vacated after the bout between Santos and Antonio Margarito ends in a no-contest in the first round.
9 Mexico Antonio Margarito
(def. Antonio Díaz)
16 March 2002 7
10 United States Paul Williams 14 July 2007 0
11 Puerto Rico Carlos Quintana 9 February 2008 0
12 United States Paul Williams (2) 7 June 2008 – 14 November 2008r 0
Williams vacates the title to move up in weight and fight for the vacant WBO interim junior middleweight world championship.[22]
13 Puerto Rico Miguel Cotto
(def. Kelson Pinto)
21 February 2009 1
14 Philippines Manny Pacquiao 14 November 2009 3
15 United States Timothy Bradley 9 June 2012 2
16 Philippines Manny Pacquiao (2) 12 April 2014 1
17 United States Floyd Mayweather Jr. 2 May 2015 – 6 July 2015s 0
Mayweather is stripped of the title for missing the deadline to pay the WBO's sanctioning fee from his 2 May bout against Manny Pacquiao and for continuing to hold world championship titles in multiple weight classes, a violation of the WBO's rules and regulations.[23]
18 United States Timothy Bradley (2)
(interim champion promoted)
6 July 2015 – 9 February 2016r 1
Bradley vacates the title after he chose to fight Manny Pacquiao instead of mandatory challenger Sadam Ali.[24]
19 United States Jessie Vargas
(def. Sadam Ali)
5 March 2016 0
20 Philippines Manny Pacquiao (3) 5 November 2016 0
21 Australia Jeff Horn 2 July 2017 1
22 United States Terence Crawford 9 June 2018 – present 4

Junior welterweight

No. Name Date Defenses
1 Puerto Rico Héctor Camacho
(def. Ray Mancini)
6 March 1989 2
2 United States Greg Haugen 23 February 1991 0
3 Puerto Rico Héctor Camacho (2) 19 May 1991 – June 1992r 0
Camacho vacates the title
4 Mexico Carlos González
(def. Jimmy Paul)
29 June 1992 3
5 United States Zack Padilla 7 June 1993 – 1994r 4
Title is vacated after Padilla experiences continuous severe headaches.
6 Puerto Rico Sammy Fuentes
(def. Fidel Avendano)
20 February 1995 1
7 Italy Giovanni Parisi 9 March 1996 5
8 Mexico Carlos González (2) 29 May 1998 0
9 United States Randall Bailey 15 May 1999 2
10 Colombia Ener Julio 22 July 2000 – 25 June 2001r 0
Title vacated when a routine eye exam reveals that Julio has cataracts.
11 United States DeMarcus Corley
(def. Felix Flores)
30 June 2001 2
12 United States Zab Judah 12 July 2003 – April 2004r 1
Judah vacated the title to move up to the welterweight division.
13 Puerto Rico Miguel Cotto
(def. Kelson Pinto)
11 September 2004 – 27 October 2006r 6
Cotto vacated the title to move up to welterweight and challenge for the WBA title
14 Colombia Ricardo Torres
(def. Mike Arnaoutis)
18 November 2006 3
15 United States Kendall Holt
(def. Ricardo Torres)
5 July 2008 1
16 United States Timothy Bradley 4 April 2009 – 27 June 2012r 3
Bradley vacated the title after moving up to welterweight.[25]
17 Mexico Juan Manuel Márquez
(interim champ promoted)
27 June 2012 – 12 October 2013r 0
Márquez vacated the title to move up to Welterweight and challenge Timothy Bradley for the WBO belt.
18 United States Mike Alvarado
(interim champ promoted)
12 October 2013 0
19 Russia Ruslan Provodnikov 19 October 2013 0
20 United States Chris Algieri 14 June 2014 – 2 November 2014r 0
Algieri vacated the title due to his upcoming bout against Manny Pacquiao for the WBO welterweight world championship.[26]
21 United States Terence Crawford
(def. Thomas Dulorme)
18 April 2015 – 26 October 2017r 6
Crawford vacated the title to move up to welterweight.[27]
22 United States Maurice Hooker
(def. Terry Flanagan)
9 June 2018 2
23 United States José Ramírez 28 July 2019 – present 1

Lightweight

No. Name Date Defenses
1 Mexico Mauricio Aceves
(def. Amancio Castro)
6 May 1989 1
2 South Africa Dingaan Thobela 22 September 1990 – 1991r 2
Thobela vacated the title
3 Italy Giovanni Parisi
(def. Javier Altamirano)
25 September 1992 – 1994r 2
Parisi vacates the title
4 United States Oscar De La Hoya
(def. Jorge Páez)
29 July 1994 – February 1996r 6
De La Hoya vacates the title to move up to junior welterweight
5 Uzbekistan Artur Grigorian
(def. Antonio Rivera)
13 April 1996 17
6 Brazil Acelino Freitas 3 January 2004 0
7 United States Diego Corrales 7 August 2004 – April 2006r 1
Corrales was stripped of the title after deciding to pursue a rematch with José Luis Castillo instead of his mandatory challenger Acelino Freitas.[28]
8 Brazil Acelino Freitas (2)
(def. Zahir Raheem)
29 April 2006 0
9 United States Juan Díaz 28 April 2007 1
10 United States Nate Campbell 8 March 2008 – 13 February 2009s 0
Campbell was stripped of his unified IBF/WBO world titles after failing to make weight the day before his bout against Ali Funeka.[29]
11 Mexico Juan Manuel Márquez
(def. Juan Díaz)
28 February 2009 – 6 January 2012r 2
Márquez vacates to move up to welterweight
12 United Kingdom Ricky Burns
(interim champ promoted)
6 January 2012 4
13 United States Terence Crawford 1 March 2014 – 24 March 2015r 2
Crawford vacates the title to move up to junior welterweight
14 United Kingdom Terry Flanagan
(def. Jose Zepeda)
11 July 2015 – 26 October 2017r 5
Flanagan vacated the title to move up to junior welterweight.[30]
15 Mexico Ray Beltrán
(def. Paulus Moses)
16 February 2018 0
16 Puerto Rico José Pedraza 25 August 2018 0
17 Ukraine Vasyl Lomachenko 8 December 2018 3
18 United States Teófimo López 17 October 2020 – present 0

Junior lightweight

No. Name Date Defenses
1 Puerto Rico John John Molina
(def. Juan Laporte)
29 April 1989 – 1989r 0
Molina vacates the title
2 Tunisia Kamel Bou Ali
(def. Antonio Rivera)
9 December 1989 2
3 France Daniel Londas 21 March 1992 0
4 Denmark Jimmi Bredahl 4 September 1992 1
5 United States Oscar De La Hoya 5 March 1994 – July 1994r 1
De La Hoya vacates the title to move up to lightweight.
6 Netherlands Regilio Tuur
(def. Eugene Speed)
24 September 1994 – 1997r 6
Tuur retired as the WBO junior lightweight world champion.[31]
7 United Kingdom Barry Jones
(def. Wilson Palacio)
19 December 1997 – 1998r 0
Jones lost his boxing license after a brain scan found an anomaly. The WBO vacated his title before Jones regained his license
8 Russia Anatoly Alexandrov
(def. Julien Lorcy)
16 May 1998 1
9 Brazil Acelino Freitas 7 August 1999 – 15 January 2004r 11
Freitas vacates the title to move up to lightweight
10 United States Diego Corrales
(def. Joel Casamayor)
6 March 2004 – 7 August 2004r 0
Corrales vacates the title to move up to lightweight
11 United States Mike Anchondo
(def. Pablo Chacón)
15 July 2004 0
12 Argentina Jorge Rodrigo Barrios 8 April 2005 – 15 September 2006s 2
Barrios was stripped of the title after failing to make weight the day before his scheduled bout against Joan Guzmán.[32]
13 Dominican Republic Joan Guzmán
(def. Jorge Rodrigo Barrios)
16 September 2006 – 14 May 2008r 2
Guzmán vacated the title to move up to lightweight after continued difficulties negotiating a bout against mandatory challenger Alex Arthur.[33]
14 United Kingdom Alex Arthur
(interim champ promoted)
May 2008 0
15 United Kingdom Nicky Cook 9 September 2008 0
16 Puerto Rico Román Martínez 14 March 2009 2
17 United Kingdom Ricky Burns 4 September 2010 – 10 September 2011r 3
Burns vacated the title to move up to lightweight
18 United States Adrien Broner
(def. Vicente Martín Rodríguez)
26 November 2011 – 20 July 2012s 1
Broner was stripped of the title after failing to make weight the day before his scheduled bout against mandatory challenger Vicente Escobedo.[34]
19 Puerto Rico Román Martínez
(def. Miguel Beltrán Jr.)
15 September 2012 2
20 United States Mikey Garcia 9 November 2013 – 15 October 2014r 1
Garcia vacates the title to move up to junior welterweight.[35]
21 Mexico Orlando Salido
(interim champ promoted)
14 October 2014 0
22 Puerto Rico Román Martínez 11 April 2015 1
23 Ukraine Vasyl Lomachenko 11 June 2016 – 23 May 2018r 4
Lomachenko vacated the title after moving up in weight and defeating Jorge Linares for the WBA lightweight world championship.[36]
24 Japan Masayuki Ito
(def. Christopher Díaz)
28 July 2018 1
25 United States Jamel Herring 25 May 2019 – present 3

Featherweight

No. Name Date Defenses
1 Italy Maurizio Stecca
(def. Pedro Nolasco)
28 January 1989 1
2 United States Louie Espinoza 11 November 1989 0
3 Mexico Jorge Páez 7 April 1990 – 1990r 1
Paez vacates the title to move up to junior lightweight
4 Italy Maurizio Stecca (2)
(def. Armando Juan Reyes)
26 January 1991 2
5 United Kingdom Colin McMillan 16 February 1992 0
6 Colombia Rubén Darío Palacio 26 September 1992 – 1993s 0
Palacio was stripped of the title after failing a pre-fight medical examination due to testing positive for HIV.[37]
7 United Kingdom Steve Robinson
(def. John Davison)
17 April 1993 7
8 United Kingdom Naseem Hamed 30 September 1995 – October 2000r 15
Hamed vacated the title after HBO refused to approve mandatory challenger István Kovács as his opponent.[38]
9 Hungary István Kovács
(def. Antonio Díaz)
27 January 2001 0
10 Argentina Pablo Chacón 16 June 2001 – 19 October 2002r 2
Chacón vacates the title to move up to junior lightweight
11 United Kingdom Scott Harrison
(def. Victor Santiago)
8 June 2002 2
12 Mexico Manuel Medina 12 July 2003 0
13 United Kingdom Scott Harrison (2) 29 November 2003 – 6 December 2006r 6
Harrison vacated the title after withdrawing from a bout against Nicky Cook because he could no longer make the featherweight limit.[39]
14 Mexico Juan Manuel Márquez
(interim champ promoted)
6 December 2006 – 1 April 2007r 0
Márquez vacates to move up to junior lightweight
15 United States Steven Luevano 14 July 2007 5
16 Puerto Rico Juan Manuel López 23 January 2010 1
17 Mexico Orlando Salido 16 April 2011 2
18 United States Mikey Garcia 19 January 2013 – 14 June 2013s 0
Garcia was stripped of the title after failing to make weight the day before his scheduled bout against Juan Manuel López.[40]
19 Mexico Orlando Salido (2)
(def. Orlando Cruz)
12 October 2013 – 28 February 2014s 0
Salido was stripped of the title after failing to make weight the day before his scheduled bout against Vasyl Lomachenko.[41]
20 Ukraine Vasyl Lomachenko
(def. Gary Russell Jr.)
21 June 2014 – 21 July 2016r 3
Lomachenko vacated the title after moving up in weight and defeating Román Martínez for the WBO junior lightweight world championship.[42]
21 Mexico Óscar Valdez
(def. Matías Rueda)
23 July 2016 – 2 August 2019r 6
Valdez vacates the title to move up to junior lightweight
22 United States Shakur Stevenson
(def. Joet Gonzalez)
26 October 2019 – 7 July 2020r 0
Stevenson vacates the title to move up to junior lightweight
23 Mexico Emanuel Navarrete
(def. Ruben Villa)
9 October 2020 – present 1

Junior featherweight

No. Name Date Defenses
1 United States Kenny Mitchell
(def. Julio Gervacio)
29 April 1989 1
2 Italy Valerio Nati 9 December 1989 0
3 Puerto Rico Orlando Fernandez 12 May 1990 0
4 United States Jesse Benavides 24 May 1991 1
5 United Kingdom Duke McKenzie 15 October 1992 0
6 Puerto Rico Daniel Jiménez 9 June 1993 4
7 Mexico Marco Antonio Barrera 31 March 1995 8
8 United States Junior Jones 22 November 1996 1
9 United States Kennedy McKinney 18 April 1997 – 1998r 0
McKinney vacates to fight for featherweight title.
10 Mexico Marco Antonio Barrera (2)
(def. Richie Wenton)
31 October 1998 2
11 Mexico Érik Morales 19 February 2000 – February 2000r 0
Morales vacates the title to move up to featherweight
12 Mexico Marco Antonio Barrera (3)
(reinstated as champion)
March 2000 – April 2001r 2
Title vacated when Barrera won the vacant IBO Featherweight title, defeating Naseem Hamed in Las Vegas, Nevada.
13 Dominican Republic Agapito Sánchez
(def. Jorge Monsalvo)
23 June 2001 – 2002s 1
Title stripped due to inactivity.
14 Dominican Republic Joan Guzmán
(def. Jorge Monsalvo)
17 August 2002 – 4 July 2005s 2
The WBO stripped Guzman of the title due to his not making weight for a defense against Marcos Licona, scheduled for 6 November.
15 Mexico Daniel Ponce de León
(def. Sod Looknongyangtoy)
29 October 2005 6
16 Puerto Rico Juan Manuel López 7 June 2008 – January 2010r 5
Juan Manuel López vacated the title to move up to featherweight.
17 Puerto Rico Wilfredo Vázquez Jr.
(def. Marvin Sonsona)
27 February 2010 2
18 Mexico Jorge Arce 7 May 2011 – 18 November 2011r 1
Arce vacated the title to move down to bantamweight.[43]
19 Philippines Nonito Donaire
(def. Wilfredo Vázquez Jr.)
4 February 2012 3
20 Cuba Guillermo Rigondeaux 13 April 2013 – 28 October 2015s 3
Rigondeaux was stripped of the title due to inactivity.[44]
21 Philippines Nonito Donaire (2)
(def. César Juárez)
11 December 2015 1
22 United States Jessie Magdaleno 5 November 2016 1
23 Ghana Isaac Dogboe 28 April 2018 1
24 Mexico Emanuel Navarrete 8 December 2018 5
25 United States Angelo Leo 1 August 2020 0
26 United States Stephen Fulton 23 January 2021 – present 0

Bantamweight

No. Name Date Defenses
1 Venezuela Israel Contreras
(def. Maurizio Lupino)
3 February 1989 – 1991r 1
Contreras vacates the title in order to challenge Luisito Espinosa for the WBA title.
2 United States Gaby Canizales
(def. Miguel Lora)
12 March 1991 0
3 United Kingdom Duke McKenzie 30 June 1991 2
4 Puerto Rico Rafael del Valle 13 May 1992 2
5 Ghana Alfred Kotey 30 July 1994 2
6 Puerto Rico Daniel Jiménez 21 October 1995 1
7 United Kingdom Robbie Regan 26 April 1996 – 1997r 0
Regan retires
8 Colombia Jorge Eliécer Julio
(def. Oscar Maldonado)
28 July 1997 3
9 United States Johnny Tapia 8 January 2000 – September 2000r 1
Tapia vacates the title to fight Paulie Ayala at junior featherweight.
10 Panama Mauricio Martínez
(def. Lester Fuentes)
4 September 2000 1
11 Mexico Cruz Carbajal 15 March 2002 2
12 Thailand Ratanachai Sor Vorapin 7 May 2004 1
13 Mexico Jhonny González 29 October 2005 1
14 Philippines Gerry Peñalosa 11 August 2007 – 25 August 2009s 1
Title stripped due to Peñalosa not defending the belt for a year.
15 Mexico Fernando Montiel
(def. Diego Oscar Silva)
28 March 2009 2
16 Philippines Nonito Donaire 19 February 2011 – 22 October 2011r 2
Donaire vacates the title to move up to junior featherweight
17 Mexico Jorge Arce
(def. Angky Angkotta)
26 November 2011 – February 2012r 0
Arce vacates the title to fight at junior featherweight against Nonito Donaire.
18 Thailand Pungluang Sor Singyu
(def. A. J. Banal)
20 October 2012 0
19 Namibia Paulus Ambunda 2 March 2013 0
20 Japan Tomoki Kameda 1 August 2013 – 23 April 2015r 3
Kameda's request to make his fight with Jamie McDonnell a unification bout was rejected by the WBO as McDonnell was only the "regular" champion which is considered a secondary title by the WBO. As a result, Kameda relinquished his title.
21 Thailand Pungluang Sor Singyu
(def. Ryo Akaho)
8 August 2015 1
22 Philippines Marlon Tapales 27 July 2016 – 22 April 2017s 0
Tapales was stripped of the title after failing to make weight the day before his bout against Shohei Omori.[45]
23 South Africa Zolani Tete
(interim champ promoted)
23 April 2017 3
24 Philippines John Riel Casimero 30 November 2019 – present 1

Junior bantamweight

No. Name Date Defenses
1 Puerto Rico José Ruíz Matos
(def. Bebis Rojas)
29 April 1989 4
2 Mexico José Quirino 22 February 1992 0
3 Denmark Johnny Bredahl 4 September 1992 – 1994 3
Bredahl vacates the title
4 United States Johnny Tapia
(def. Henry Martínez)
14 October 1994 – December 1998r 13
Tapia vacates the title to move up to bantamweight
5 Argentina Victor Godoi
(def. Pedro Morquecho)
7 November 1998 0
6 Mexico Diego Morales 7 June 1999 1
7 Nicaragua Adonis Rivas 20 November 1999 2
8 Panama Pedro Alcázar 16 June 2001 1
9 Mexico Fernando Montiel 22 June 2002 1
10 United States Mark Johnson 16 August 2003 1
11 Mexico Iván Hernández 25 September 2004 0
12 Mexico Fernando Montiel (2) 9 April 2005 – January 2009r 6
Montiel vacates his title to move up to bantamweight
13 Puerto Rico José López
(def. Pramuansak Posuwan)
28 March 2009 0
14 Philippines Marvin Sonsona 4 September 2009 – 20 November 2009s 0
Sonsona was stripped of the title after failing to make weight on the day of his bout against Alejandro Hernández.[46]
15 Mexico Jorge Arce
(def. Angky Angkotta)
30 January 2010 – April 2010r 0
Arce vacates his title to move up to bantamweight
16 Argentina Omar Andrés Narváez
(def. Everth Briceño)
15 May 2010 11
17 Japan Naoya Inoue 30 December 2014 – 6 March 2018r 7
Inoue vacates the title to move up to bantamweight
18 Philippines Donnie Nietes
(def. Kazuto Ioka)
31 December 2018 – 28 February 2019r 0
Nietes vacates the title to pursue a career-defining fight.[47]
19 Japan Kazuto Ioka
(def. Aston Palicte)
19 June 2019 – present 2

Flyweight

No. Name Date Defenses
1 Colombia Elvis Álvarez
(def. Miguel Mercedes)
3 March 1989 – 1990r 0
Álvarez vacates the title due to lack of interest in it
2 Mexico Isidro Pérez
(def. Angel Rosario)
18 August 1990 2
3 United Kingdom Pat Clinton 18 March 1992 1
4 South Africa Jacob Matlala 15 May 1993 3
5 Mexico Alberto Jiménez 11 February 1995 5
6 Argentina Carlos Gabriel Salazar 13 December 1996 5
7 Mexico Ruben Sánchez León 14 August 1998 1
8 Spain José Antonio López Bueno 23 April 1999 – 1999r 1
Bueno vacates the title due to an ankle injury thus preventing him from defending the title
9 Mexico Isidro García
(def. José López)
18 December 1999 1
10 Mexico Fernando Montiel 15 December 2000 – May 2002r 3
Montiel vacates the title to move up to junior bantamweight
11 Nicaragua Adonis Rivas
(def. Jair Jimenez)
4 May 2002 0
12 Argentina Omar Andrés Narváez 13 July 2002 – May 2010r 16
Narváez vacates the title to move up to junior bantamweight
13 Mexico Julio César Miranda
(def. Richie Mepranum)
12 June 2010 3
14 United States Brian Viloria 16 July 2011 3
15 Mexico Juan Francisco Estrada 6 April 2013 – 14 September 2016r 5
Estrada vacates the title to move up to junior bantamweight.[48]
16 China Zou Shiming
(def. Prasitsak Phaprom)
5 November 2016 0
17 Japan Sho Kimura 28 July 2017 2
18 Japan Kosei Tanaka 24 September 2018 – 4 February 2020r 3
Tanaka vacates the title to move up to junior bantamweight.[49]
19 Japan Junto Nakatani
(def. Giemel Magramo)
6 November 2020 – present 0

Junior flyweight

No. Name Date Defenses
1 Puerto Rico José de Jesús
(def. Fernando Martínez)
19 May 1989 – March 1992s 3
de Jesús was stripped of the title after failing to defend it in a specific time period
2 Puerto Rico Josué Camacho
(def. Eddie Vallejo)
31 July 1992 1
3 United States Michael Carbajal 15 July 1994 – 12 November 1994s 0
Carbajal is stripped of the title for failing to defend the title
4 United Kingdom Paul Weir
(def. Paul Oulden)
23 November 1994 1
5 South Africa Jacob Matlala 18 November 1995 – 1997r 2
Matlala vacates the title to fight Michael Carbajal rather than defend his title
6 Mexico Jesús Chong
(def. Eric Griffin)
31 May 1997 0
7 Mexico Melchor Cob Castro 25 August 1997 0
8 Argentina Juan Domingo Córdoba 17 January 1998 1
9 Mexico Jorge Arce 5 December 1998 1
10 United States Michael Carbajal (2) 31 July 1999 – August 1999r 0
Carbajal retires
11 South Africa Masibulele Makepula
(def. Jacob Matlala)
19 February 2000 – 2000r 0
Makepula vacates the title to move up to flyweight
12 Puerto Rico Nelson Dieppa
(def. Andy Tabanas)
14 April 2001 5
13 Mexico Hugo Cázares 30 April 2005 4
14 Puerto Rico Iván Calderón 25 August 2007 6
15 Mexico Giovani Segura 28 August 2010 – April 2011r 1
Segura vacates the title to move up to flyweight
16 Colombia Jesús Géles
(interim champ promoted)
April 2011 0
17 Mexico Ramón García Hirales 30 April 2011 0
18 Philippines Donnie Nietes 8 October 2011 – 17 April 2016r 9
Nietes vacates the title to move up to flyweight.[50]
19 Japan Kosei Tanaka
(def. Moisés Fuentes)
31 December 2016 – 1 December 2017r 2
Tanaka vacates the title to move up to flyweight.[51]
20 Puerto Rico Ángel Acosta
(def. Juan Alejo)
2 December 2017 3
21 Mexico Elwin Soto 21 June 2019 – present 3

Mini flyweight

No. Name Date Defenses
1 Dominican Republic Rafael Torres
(def. Yamil Caraballo)
30 August 1989 – 1993r 1
Torres vacates the title
2 United Kingdom Paul Weir
(def. Fernando Martínez)
15 May 1993 – 16 December 1993r 1
Weir vacates the title to move up in weight and challenge Josué Camacho for a junior flyweight world title.[52]
3 Puerto Rico Alex Sánchez
(def. Orlando Malone)
22 December 1993 6
4 Mexico Ricardo López 23 August 1997 – 6 March 1998r 0
López vacated all his titles to move up to junior flyweight
5 Philippines Eric Jamili
(def. Mickey Cantwell)
19 December 1997 0
6 Colombia Kermin Guardia 30 May 1998 – 2001r 3
Guardia vacates the title to move up to junior flyweight
7 Spain Jorge Mata
(def. Reynaldo Frutos)
29 June 2002 1
8 Nicaragua Eduardo Ray Márquez 28 March 2003 0
9 Puerto Rico Iván Calderón 3 May 2003 – 25 August 2007r 11
Calderón vacates the title to move up to junior flyweight
10 Philippines Donnie Nietes
(def. Pornsawan Porpramook)
30 September 2007 – 25 February 2011r 4
Nietes vacates the title to move up in weight and challenge Ramón García Hirales for the WBO junior flyweight world championship.
11 Mexico Raúl García
(interim champ promoted)
25 February 2011 1
12 Mexico Moisés Fuentes 27 August 2011 – 19 April 2013r 2
Fuentes vacates the title to move up to junior flyweight
13 Philippines Merlito Sabillo
(interim champ promoted)
19 April 2013 2
14 Mexico Francisco Rodríguez Jr. 22 March 2014 – December 2014r 1
Rodríguez vacates the title to move up to flyweight
15 Japan Katsunari Takayama
(def. Go Odaira)
31 December 2014 – 2 March 2015r 0
Takayama vacates his WBO title to skip mandatory challenger in favor of a fight with former champion Fahlan Sakkreerin
16 Japan Kosei Tanaka
(def. Julián Yedras)
30 May 2015 – 11 April 2016r 1
Tanaka vacates the title to move up to junior flyweight.[53]
17 Japan Katsunari Takayama (2)
(def. Riku Kano)
20 August 2016 – 14 April 2017r 0
Takayama announced retirement from professional boxing in order to concentrate on training for the 2020 Summer Olympics
18 Japan Tatsuya Fukuhara
(interim champ promoted)
14 April 2017 0
19 Japan Ryuya Yamanaka 27 August 2017 1
20 Philippines Vic Saludar 13 July 2018 1
21 Puerto Rico Wilfredo Mendez 24 August 2019 – present 2

See also

References

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