Seo-In Kim (born 18 April 1995) is a South Korean footballer who plays as a midfielder for Life FC in Cambodian Premier League.
Seo-In Kim has one older brother who played soccer at the Division 1 collegiate level for the University of Tulsa and the United States Air Force Academy.
Seo-In Kim played for Blue Valley West High School in Overland Park, Kansas.
The following season, Kim was brought up to the U18 squad by head coach, Paul Rideout, making him the youngest player rostered.
In 2013, Sporting Kansas City nominated Seo-In Kim for the US Soccer Federation's Young Male Athlete of the Year Award.
Highlighting his UCSB career, Kim scored a diving header against Blue Green Rivals, Cal Poly.
[12] In July 2020, Kim signed with Oakland Roots SC of the National Independent Soccer Association ahead of the team's Fall 2020 season.
[13] On 23 January 2023, Kim signed with Lexington SC of USL League One as part of the club's inaugural season.