2013 K League Classic

The 2013 K League Classic was the 31st season of the top division of South Korean professional football. The South Korean professional football league, K League, was split into two divisions since this year, and the top division was named the "K League Classic". Its fixtures were announced on 30 January, and began on 2 March.

Foreign players
Restricting the number of foreign players strictly to four per team, including a slot for a player from AFC countries. A team could use four foreign players on the field each game including a least one player from the AFC country.

Relegation play-offs
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Sangju Sangmu won 4–2 on aggregate and were promoted to the K League Classic, while Gangwon FC were relegated to the K League Challenge.

Awards
The 2013 K League Awards was held on 3 December 2013.

Main awards
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Best XI
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