The 2005 Suwon Samsung Bluewings season was Suwon Samsung Bluewings's tenth season in the K-League in Republic of Korea.

Suwon Samsung Bluewings is competing in K-League, League Cup, Korean Super Cup, Korean FA Cup, A3 Champions Cup and AFC Champions League.

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

Players may hold more than one non-FIFA nationality.