Suh Sung-in (Korean: 서성인; born July 18, 1959, in Seoul, South Korea) is a former boxer from South Korea.
In 1984, Suh became the IBF Super Bantamweight champion by beating Bobby Berna via a tenth-round TKO.
He defended his title once before losing it to Kim Ji-won by a tenth-round KO in 1985.
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