The 2009 K League Championship was the 13th competition of the K League Championship, and was held to decide the 27th champions of the K League. The top six clubs of the regular season qualified for the championship. The winners of the regular season directly qualified for the final, and second place team qualified for the semi-final. The other four clubs entered the first round, and the winners of the second round advanced to the semi-final. Each match was played as a single match, excluding the final which consisted of two matches. Jeonbuk Hyundai Motors became the champions for the first time by defeating Seongnam Ilhwa Chunma 3âÂÂ1 on aggregate in the final.
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Jeonbuk Hyundai Motors won 3âÂÂ1 on aggregate.