Flyweight
| Name: | Date: | Location: | Defenses: |
|---|---|---|---|
| Soon-Chun Kwon def. Rene Busayong |
December 24, 1983 | Seoul, South Korea | 7 |
| Jong-Kwan Chung | December 20, 1985 | Busan, South Korea | 0 |
| Bi-Won Chung | April 27, 1986 | Busan, South Korea | 0 |
| Hi-Sup Shin | August 2, 1986 | Inchon, South Korea | 1 |
| Dodie Boy Penalosa | February 22, 1987 | Inchon, South Korea | 0 |
| Chang-Ho Choi | September 5, 1987 | Manila, Philippines | 0 |
| Duke McKenzie | October 5, 1988 | London, England | 1 |
| Dave McAuley | June 7, 1989 | London, England | 5 |
| Rodolfo Blanco | June 11, 1992 | Bilbao, Spain | 0 |
| Pichit Sitbangprachan | November 29, 1992 | Samut Prakan, Thailand | 5 |
| Title vacated | November 25, 1994 | Sitbangprachan retired. His last successful defense was against Jose Luis Zepeda on May 8, 1994 in Ratchaburi, Thailand | |
| Francisco Tejedor def. Jose Luis Zepeda |
February 18, 1995 | Cartagena, Colombia | 0 |
| Danny Romero | April 22, 1995 | Las Vegas, Nevada | 1 |
| Robbie Regan – Interim def. Ferid Ben Jeddou |
December 16, 1995 | Cardiff, Wales | 0 |
| Title vacated | 1995–1996 | ||
| Mark Johnson def. Francisco Tejedor |
May 4, 1996 | Anaheim, California | 7 |
| Title vacated | 1998–1999 | Johnson's last successful defense was against José Laureano on September 4, 1998 in Atlantic City, New Jersey. | |
| Irene Pacheco def. Luis Cox Coronado |
April 10, 1999 | Barranquilla, Colombia | 6 |
| Vic Darchinyan | December 16, 2004 | Hollywood, Florida | 5 |
| Nonito Donaire | July 7, 2007 | Bridgeport, Connecticut | 3 |
| Title vacated | July 1, 2009 | Donaire vacated the title due to wanting to move up in weight | |
Read more about this topic: List Of IBF World Champions