Junior Bantamweight World/Lineal Champions (115lbs)
Jiro Watanabe (29/7/1982 - 30/3/1986)
Watanabe (1) beat Gustavo Ballas (3) BNews
Gilberto Roman (30/3/1986 - 16/5/1987)
Santos Laciar (16/5/1987 - 8/8/1987)
Bebis Rojas (8/8/1987 - 8/4/1988)
Gilberto Roman (8/4/1988 - 7/11/1989)
Nana Yaw Konadu (7/11/1989 - 20/1/1990)
Sung-Kil Moon (20/1/1990 - 13/11/1993)
Jose Luis Bueno (13/11/1993 - 4/5/1994)
Hiroshi Kawashima (4/5/1994 - 20/2/1997)
Gerry Penalosa (20/2/1997 - 29/8/1998)
In-Joo Cho 29/8/1998 - 27/8/2000)
Masamori Tokuyama (27/8/2000 – 28/6/2004)
Katsushige Kawashima (28/6/2004 – 18/7/2005)
Masamori Tokuyama (18/7/2005 – 10/12/2006)
Tokuyama moved up in weight
Fernando Montiel (16/2/2008 – 10/1/2009)
Montiel (5) beat Martin Castillo (1)
Montiel moved up in weight
Vic Darchinyan (10/1/2009 – 31/8/2010)
Darchinyan had already unified the IBF/WBA/WBC titles
Darchinyan moved up in weight
Srisaket Sor Rungvisai (3/5/2013 – 31/5/2014)
Sor Rungvisai (3) beat Yota Sato (2)
Carlos Cuadras (31/5/2014 – 10/9/2016)
Roman Gonzalez (10/9/2016 – 18/3/2017)
Srisaket Sor Rungvisai (18/3/2017 – 26/4/2019)
Juan Francisco Estrada (26/4/2019 -