Koo Sang-Min (Korean: 구상민; born 31 October 1991) is a South Korean footballer who plays as a goalkeeper for Busan IPark.^[1]

While playing for Ulsan Dolphins, Koo scored a goal directly from a goal kick on 25 June 2014 in a victory over Gimhae City. At the time it was recorded as the longest goal of all time. The following year, he was named as the National League MVP as Ulsan finished top of the division.

Koo signed with Busan IPark from Ulsan Dolphins on 13 January 2016.^[2] Koo was first-choice keeper in his first season with the club, conceding 25 goals in 32 games, but he later faced competition for the starting spot from the likes of Kim Hyung-keun and Kim Kyeong-min. Midway through the 2019 season Koo left to complete his mandatory military service with Yangju Citizen FC in the K League 3 before returning to Busan in April 2021. Koo found himself back-up keeper to Ahn Joon-soo under struggling Portuguese manager Ricardo Peres, but replacement coach Park Jin-sub reinstated Koo to the starting line-up midway through the 2022 season.

In 2023, Koo played every minute of every game for Busan as they finished second in the league, with the club missing out on promotion after a 4-6 two-leg aggregate defeat to Suwon FC in the play-offs. Koo kept 15 clean sheets and was named in the K League 2 Best XI for the season. Following the 2023 season, only goalkeeper Kim Poong-joo has kept more clean sheets for Busan in the club's history.

As of 12 December 2023