Junior Flyweight World/Lineal Champions (108lbs)

Luis Estaba (18/7/1976 – 19/2/1978)

Estaba (1) beat Franco Udella (3) BNews

Freddie Castillo (19/2/1978 – 6/5/1978)

Netrnoi Sor Vorasingh (6/5/1978  30/9/1978)

Sung-Jun Kim (30/9/1978 – 3/1/1980)

Shigeo Nakajima (3/1/1980 – 24/3/1980)

Hilario Zapata (24/3/1980 – 6/2/1982)

Amado Ursua (6/2/1982 – 13/4/1982)

Tadashi Tomori (13/4/1982 – 20/7/1982)

Hilario Zapata (20/7/1982 – 26/3/1983)

Jung-Koo Chang (26/3/1983 – 9/12/1989)

Humberto Gonzalez (9/12/1989 – 19/12/1990)

Rolando Pascua (19/12/1990 - 25/3/1991)

Melchor Cob Castro (25/3/1991 – 3/6/1991)

Humberto Gonzalez (3/6/1991 – 13/3/1993)

Michael Carbajal (13/3/1993 – 19/2/1994)

Humberto Gonzalez (19/2/1994 – 15/7/1995)
Saman Sorjaturong (15/7/1995 – 17/10/1999)
Yo-Sam Choi (17/10/1999 – 6/7/2002)
Jorge Arce (6/7/2002 – 18/12/2004) 

Arce moved up in weight
Hugo Fidel Cazares (30/9/2006 – 25/8/2007)

Cazares (1) beat Nelson Dieppa (2)
Ivan Calderon (25/8/2007 – 28/8/2010)
Giovani Segura (28/8/2010 – 5/4/2011)

Segura moved up in weight
Donnie Nietes (10/5/2014 – 3/8/2016)

Nietes (1) beat Moises Fuentes (3)
Nietes moved up in weight

Ryoichi Taguchi (31/12/2017 – 20/5/2018)

Taguchi (1) beat Milan Melindo (2)

Hekkie Budler (20/5/2018 – 31/12/2018)

Hiroto Kyoguchi (31/12/2018 –