Hong Soo-hwan (Korean: 홍수환, born May 26, 1950) is a South Korean former professional boxer who competed between 1969 and 1980. He is a world champion in two weight classes, having held the World Boxing Association (WBA) and Ring magazine bantamweight titles from 1974 to 1975, and the WBA super-bantamweight title from 1977 to 1978.

Hong turned pro in 1969. In 1974, he won the WBA and The Ring bantamweight titles with a decision win over Arnold Taylor. During the fight, Taylor was knocked down in the 1st, 5th, and 14th rounds. Hong lost the title in his second defense to Alfonso Zamora in 1975. In 1977, he won the vacant WBA super bantamweight title by knocking out Hector Carrasquilla in the 3rd round. Despite being knocked down four times in the second round, Hong made a comeback and won in the following round. He lost the title in his second defense to Ricardo Cardona in 1978.

Hong was named The Ring's Progress of the Year fighter for 1974.