The 2009 season was Seongnam Ilhwa Chunma's twenty-first season in the K-League in South Korea.

Seongnam Ilhwa Chunma competed in K-League, League Cup and Korean FA Cup.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

Statistics accurate as of match played 6 December 2009