The 2013 Korea National League was the eleventh season of the Korea National League. A total of ten clubs participated in this season after four clubs were dropped out from the league. Ansan H FC (Goyang Hi FC), Suwon City (Suwon FC), and Chungju Hummel started to participate in a new professional league K League 2. Kookmin Bank decided to dissolve their football club Goyang KB Kookmin Bank and sponsor K League 2 club FC Anyang. The post-season playoffs were contested by four teams.
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