Hiroshi Kobayashi

is a Japanese former professional boxer who held the undisputed super-featherweight title from 1967 to 1969. He is the division's final undisputed champion of the two-belt era and is the most recent such champion as of 2026.

Professional career Kobayashi turned pro in 1962 and won the lineal, WBC, and WBA super-featherweight title in 1967 by defeating Yoshiaki Numata by 12th-round KO in a bout where Numata was down once in the 6th and three times in the 12th round. He defended his undisputed status two times before he was stripped of his WBC title on 20 January 1969 after failing to go through with an agreed rematch with Rene Barrientos (their first fight ended in a contentious draw). Kobayashi defended his remaining titles four times before losing them to Alfredo Marcano in 1971. He retired later that year after losing by knockout in the seventh round against Roberto Durán in Panama.

Professional boxing record

Titles in boxing Major world titles WBA super featherweight champion (130 lbs) WBC super featherweight champion (130 lbs)

The Ring magazine titles The Ring super featherweight champion (130 lbs)

Regional/International titles Japanese featherweight champion (126 lbs)

Undisputed titles Undisputed super featherweight champion