WBO dünya şampiyonları listesi
Orta Sıklet

| Boksör: | Tarih: | Yer: | Unvan   Koruma: |
| --- | --- | --- | --- |
|  Doug DeWitt def. Robbie Sims | Nisan 18, 1989 | Atlantic City, New Jersey, ABD | 1 |
|  Nigel Benn | Nisan 29, 1990 | Atlantic City, New Jersey, ABD | 1 |
|  Chris Eubank | Kasım 18, 1990 | Birmingham, İngiltere | 3 |
| Title vacated | 21 Eylül 1991 | Eubank vacated the title to move up to Super Middleweight. His last defense was against Michael Watson on Haziran 22, 1991 in London, İngiltere. | Eubank vacated the title to move up to Super Middleweight. His last defense was against Michael Watson on Haziran 22, 1991 in London, İngiltere. |
|  Gerald McClellan def. John Mugabi | Kasım 20, 1991 | London, İngiltere | 0 |
| Title vacated | Şubat 24, 1992 | McClellan vacated the title to move up to Super Middleweight. | McClellan vacated the title to move up to Super Middleweight. |
|  Chris Pyatt def. Sumbu Kalambay | Mayıs 19, 1993 | Leicester, İngiltere | 2 |
|  Steve Collins | Mayıs 11, 1994 | Sheffield, İngiltere | 0 |
| Title vacated | Mart 18, 1995 | Collins vacated the title to move up to Super Middleweight. | Collins vacated the title to move up to Super Middleweight. |
|  Lonnie Bradley def. David Mendez | Mayıs 19, 1995 | Primm, Nevada, ABD | 6 |
| Title vacated | 1997 | Bradley vacated title to have eye surgery to repair a detached retina. | Bradley vacated title to have eye surgery to repair a detached retina. |
|  Otis Grant def. Ryan Rhodes | Aralık 13, 1997 | Sheffield, İngiltere, Birleşik Krallık | 1 |
| Title vacated | Kasım 14, 1998 | Grant vacated the title to move up to Light Heavyweight. His only defense was against Ernesto Rafael Sena on Mayıs 12, 1998 in Kanata, Ontario, Kanada. | Grant vacated the title to move up to Light Heavyweight. His only defense was against Ernesto Rafael Sena on Mayıs 12, 1998 in Kanata, Ontario, Kanada. |
|  Bert Schenk def. Freeman Barr | Ocak 30, 1999 | Cottbus, Almanya | 1 |
| Title vacated | Mid-1999 | Schenk vacated title due to achilles injury. He had one successful defense was against Juan Ramon Medina on Mayıs 22, 1999 in Budapeşte, Macaristan. | Schenk vacated title due to achilles injury. He had one successful defense was against Juan Ramon Medina on Mayıs 22, 1999 in Budapeşte, Macaristan. |
|  Jason Matthews def. Ryan Rhodes | Temmuz 17, 1999 | Doncaster, İngiltere | 0 |
|  Armand Krajnc | Kasım 27, 1999 | Lübeck, Almanya | 3 |
Krajnc vacated the title on Haziran 4, 2001, while in a dispute with Universum Box-Promotion; the WBO unanimously voted on 17 Eylül 2001 that Krajnc never actually vacated and remained as WBO champion.
|  Harry Simon | Nisan 6, 2002 | Kopenhag, Danimarka | 0 |
Harry Simon awarded interim title on Temmuz 21, 2001 after defeating Hacine Cherifi. At the time it was believed that Krajnc had vacated the title, however, the WBO later ruled that Krajnc remained as champion.
| Title vacated | Kasım 2002 | Title vacated after Simon sentenced to prison due to his role in fatal car crash. | Title vacated after Simon sentenced to prison due to his role in fatal car crash. |
|  Hector Javier Velazco def. Andras Galfi | Mayıs 10, 2003 | Buenos Aires, Arjantin | 0 |
|  Felix Sturm | Eylül 13, 2003 | Berlin, Almanya | 1 |
|  Oscar De La Hoya | Haziran 5, 2004 | Las Vegas, Nevada, ABD | 0 |
|  Bernard Hopkins | Eylül 18, 2004 | Las Vegas, Nevada, ABD | 1 |
|  Jermain Taylor | 16 Temmuz 2005 | Las Vegas, Nevada, ABD | 3 |
|  Kelly Pavlik | Eylül 29, 2007 | Atlantic City, New Jersey, ABD | 3 |
|  Sergio Gabriel Martínez | Nisan 17, 2010 | Atlantic City, New Jersey, ABD | 0 |
| Title stripped | Mayıs 29, 2010 | Title stripped because Martinez refused to vacate WBC Light Middleweight title. | Title stripped because Martinez refused to vacate WBC Light Middleweight title. |
|  Dmitry Pirog def. Daniel Jacobs | Temmuz 31, 2010 | Las Vegas, Nevada, ABD | 3 |
| Title stripped | Ağustos 2012 | Pirog stripped of title after being unable to defend due to back injury. Last defense was against Nobuhiro Ishida on Ocak 5, 2012 at Moskova, Rusya | Pirog stripped of title after being unable to defend due to back injury. Last defense was against Nobuhiro Ishida on Ocak 5, 2012 at Moskova, Rusya |
|  Hassan N'Dam N'Jikam Geçici şampiyon (terfi) | Ağustos 25, 2012 | NA | 0 |
|  Peter Quillin | Ekim 20, 2012 | Washington, ABD | 3 |
| Title vacated | Eylül 4, 2014 | Quillin vacates over unwillingness to fight mandatory challenger Matt Korobov. | Quillin vacates over unwillingness to fight mandatory challenger Matt Korobov. |
|  Andy Lee def. Matt Korobov current champion | Aralık 13, 2014 | Las Vegas, ABD | 1 |