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.
Boxers who won the title but were stripped due to the title bout being overturned to a no contest are not listed.
Stand: March 6, 2025.
| Current champion |
| Most consecutive title defenses |
r – Champion relinquished title.
s – Champion stripped of title.
Atomweight
Mini flyweight
| No. | Name | Duration of reign | Defences |
| 1 |  Teeraporn Pannimit | 2 Apr 2010 — 2011s | 1 |
| 2 | Teeraporn Pannimit (2) | 25 Apr 2012 — 28 Jun 2012 | 0 |
| 3 |  Hong Su-yun | 28 Jun 2012 — 9 Feb 2014 | 2 |
| 4 |  Mako Yamada | 9 Feb 2014 — 31 May 2014s | 0 |
| Yamada submitted a retirement notification to the Japanese Boxing Commission on 31 May 2014. The belt was vacated on the same day.[1] |
| 5 | Kumiko Seeser Ikehara | 20 Sep 2014 — 13 Dec 2016r | 4 |
| Ikehara retired from professional competition on 13 December 2016[2] |
| 6 | Kayoko Ebata | 19 May 2017 — 1 Dec 2018 | 1 |
| 7 | Etsuko Tada | 1 Dec 2018 — 28 Mar 2019r | 0 |
| Tada vacated the title on 28 March 2019, as she intended to move up to minimumweight.[3] |
| 8 | Kasumi Saeki | 27 Apr 2019 — 2019r | 0 |
| Saeki vacated the title, for undisclosed reasons, on 18 December 2019.[3] |
| 9 | Etsuko Tada (2) | 3 Dec 2020 — 23 Oct 2021 | 0 |
| 10 |  Nguyễn Thị Thu Nhi | 23 Oct 2021 — 8 Sep 2022 | 0 |
| 11 |  Yokasta Valle | 8 Sep 2022 — 29 Mar 2024 | 3 |
| 12 |  Seniesa Estrada | 29 Mar 2024 — 23 Oct 2024r | 0 |
| Estrada announced her retirment from the sport on 23 October 2024.[4] |
| 13 |  Sarah Bormann | 14 Dec 2024 — present | 0 |
Junior flyweight
| No. | Name | Duration of reign | Defences |
| 1 |  Yésica Bopp | 6 Nov 2009 — 2015s | 12 |
| 2 | Eun Hye Lee | 29 Sep 2015 — 1 Jun 2016s | 0 |
| Hye Lee was stripped of her title on 1 June 2016, as she failed to make a title defense in the mandated time frame.[5] |
| 3 | .svg.png) Louisa Hawton | 20 Aug 2016 — 2017r | 0 |
| Hawton vacated her title in early 2017, in order to move down to atomweight.[6] |
| 4 | Hong Su-yun | 14 May 2017 — 16 Jul 2017s | 0 |
| Su-yun vacated the title on 26 July 2017, after retiring from professional competition. |
| 5 | Naoko Fujioka | 1 Dec 2017 — 11 Dec 2017r | 0 |
| Fujioka vacated the title on 11 December 2017, to focus on defending her WBA light flyweight championship.[7] |
| 6 | Tenkai Tsunami | 8 Mar 2018 — 9 Jul 2021 | 4 |
| 7 | Seniesa Estrada | 9 Jul 2021 — 2022v | 0 |
| 8 | Evelyn Nazarena Bermúdez | 26 Mar 2022 — 26 Nov 2022 | 1 |
| 9 | Yokasta Valle | 26 Nov 2022 — 2023v | 0 |
| 9 | Evelyn Nazarena Bermúdez (2) | 10 Mar 2023 — present | 2 |
Flyweight
| No. | Name | Duration of reign | Defences |
| 1 | Susi Kentikian | 10 Oct 2009 — 16 May 2012 | 3 |
| 2 | Melissa McMorrow | 16 May 2012 — 2014s | 2 |
| 3 | Yésica Bopp | 26 Apr 2014 — 2014r | 0 |
| 4 |  Kenia Enríquez | 21 Nov 2014 — 28 Feb 2015 | 0 |
| 5 | Melissa McMorrow (2) | 28 Feb 2015 — 2016s | 0 |
| 6 | Nana Nogami | 9 Oct 2016 — 29 Apr 2017 | 0 |
| 7 | Monserrat Alarcón | 29 Apr 2017 — 17 Feb 2018 | 0 |
| 8 | Arely Muciño | 17 Feb 2018 — 29 Jul 2019s | 2 |
| Muciño was stripped of her title on 29 July 2019, as she was unable to make a defense due to an ankle injury sustained in a car crash.[8] |
| 9 |  Nicola Adams — Interim Champion since 6 October 2018, elevated to regular champion | 29 Jul 2019 — 6 Nov 2019r | 1 |
| Adams retired from professional competition on 6 November 2019, after sustaining an eye injury in a fight.[9] |
| 10 | Débora Anahí López | 20 Dec 2019 — 19 Mar 2022 | 1 |
| 11 | Tamara Elisabet DeMarco | 19 Mar 2022 — 18 Jun 2022 | 0 |
| 12 | Gabriela Celeste Alaniz | 18 Jun 2022 — 8 Jul 2023 | 1 |
| 13 | Marlen Esparza | 8 Jul 2023 — 26 Apr 2024s | 0 |
| 14 | Gabriela Celeste Alaniz (2) | 27 Apr 2024 — 2 Nov 2024 | 0 |
| 15 | Gabriela Fundora | 2 Nov 2024 — present | 0 |
Junior bantamweight
| No. | Name | Duration of reign | Defences |
| 1 | Carolina Duer | 17 Dec 2010 — 26 Jul 2013r | 6 |
| Duer vacated her title on 26 July 2013, after capturing a WBO championship a weight class up.[10] |
| 2 | Daniela Romina Bermúdez | 4 Jan 2014 — 2017r | 4 |
| 3 | Raja Amasheh | 10 Mar 2018 — 2019s | 1 |
| 4 |  Amanda Serrano | 18 Jan 2019 — 2019r | 0 |
| 5 | Miyo Yoshida | 19 Jun 2019 — 13 Dec 2020 | 1 |
| 6 | Tomoko Okuda | 13 Dec 2020 — 29 Jun 2021 | 0 |
| 7 | Miyo Yoshida (2) | 29 Jun 2021 — 30 May 2022 | 0 |
| 8 | Tamao Ozawa | 30 May 2022 — 27 Oct 2022 | 0 |
| Ozawa vacated her title on 27 October 2022, to focus on her family life.[11] |
| 9 | Mizuki Hiruta | 1 Dec 2022 — present | 5 |
Bantamweight
Junior featherweight
Featherweight
Junior lightweight
| No. | Name | Duration of reign | Defences |
| 1 | Ramona Kuehne | 4 Jun 2010 – 2018s | 8 |
| 2 |  Ewa Brodnicka – Interim champion since 13 May 2017, elevated to full champion | 22 Feb 2018 – 30 Oct 2020s | 5 |
| Brodnicka was stripped of her title on 30 October 2020, after failing to make weight for the fight with Mikaela Mayer.[12] |
| 3 | Mikaela Mayer | 31 Oct 2020 – 15 Oct 2022 | 3 |
| 4 | Alycia Baumgardner | 15 Oct 2022 – present | 3 |
Lightweight
| No. | Name | Duration of reign | Defences |
| 1 | Erin McGowan | 9 Oct 2010 – 2011s | 0 |
| 2 |  Enis Pacheco | 16 Mar 2012 – 14 Jun 2013 | 2 |
| 3 | María Elena Maderna | 14 Jun 2013 – 15 Aug 2014 | 3 |
| 4 | Amanda Serrano | 15 Aug 2014 – 2015s | 0 |
| 5 | Yohana Belén Alfonzo | 24 Sep 2015 – 2017s | 3 |
| 6 |  Rose Volante | 22 Dec 2017 – 15 Mar 2019 | 2 |
| 7 |  Katie Taylor | 15 Mar 2019 – 5 Jan 2024r | 8 |
| Taylor vacated the title on 5 January 2024 to concentrate on defending her undisputed junior-welterweight/super-lightweight championships.[13] |
| 8 | Rhiannon Dixon | 13 Apr 2024 – 28 Sep 2024 | 0 |
| 9 | Terri Harper | 28 Sep 2024 – present | 1 |
Junior welterweight
| No. | Name | Duration of reign | Defences |
| 1 | Fernanda Alegre | 3 Dec 2010 – 2015s | 10 |
| 2 | Fernanda Alegre (2) | 25 Apr 2015 – 2016r | 1 |
| 3 | Adela Celeste Peralta | 14 May 2016 – 4 Nov 2016 | 0 |
| 4 | Ana Laura Esteche | 4 Nov 2016 – 2017s | 1 |
| 5 | Amanda Serrano | 8 Sep 2018 – 2018r | 0 |
| 6 |  Christina Linardatou | 24 Mar 2019 – 2 Nov 2019 | 1 |
| 7 | Katie Taylor | 2 Nov 2019 – 2019r | 0 |
| 8 | Christina Linardatou (2) | 8 Feb 2020 – 2021r | 0 |
| 9 | Kali Reis | 19 Nov 2021 – 2021r | 0 |
| 10 | Chantelle Cameron | 5 Nov 2022 – 25 Nov 2023 | 1 |
| 11 | Katie Taylor (2) | 25 Nov 2023 – present | 1 |
Welterweight
Junior middleweight
| No. | Name | Duration of reign | Defences |
| 1 | Hanna Gabriels | 29 May 2010 – 28 Feb 2013 | 3 |
| 2 |  Oxandia Castillo | 28 Feb 2013 – 2014s | 0 |
| 3 | Hanna Gabriels (2) | 20 Dec 2014 – 2018s | 4 |
| 4 | Claressa Shields | 10 Jan 2020 – 26 Nov 2021v | 1 |
| 5 | Natasha Jonas | 19 Feb 2022 – 2023v | 2 |
| 6 |  Ema Kozin | 18 Nov 2023 – present | 0 |
Middleweight
Super middleweight
Light heavyweight
| No. | Name | Duration of reign | Defences |
| 1 |  Geovana Peres | 30 Mar 2019 – 26 Jan 2021r | 1 |
| Peres retired from professional competition on 26 January 2021.[14] |
| 2 | Claressa Shields | 27 Jul 2024 – 3 Mar 2025s | 0 |
| Shields vacated her light heavyweight title while holding on to her heavyweight belt on 3 Mar 2025.[15] |
Heavyweight
See also
References
Dina Thorslund 
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Jeannine Garside 
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Femke Hermans