FC Seoul is a South Korean professional football club based in Seoul, South Korea, who currently play in the K League Classic. FC Seoul's first participation in Asian competition was during the 1986 season, when they competed in the Asian Club Championship, their first match was against Hap Kuan of Macau, but FC Seoul withdrew. FC Seoul's next participation in Asian competition was 1999–2000 Asian Cup Winners' Cup and actual first match was Shimizu S-Pulse of Japan.
FC Seoul haven't won the Asia Champions League not yet, only have runners-up one time. Their most recent participation in the competition was in 2011.