2013 K League Challenge

The 2013 K League Challenge was the first season of the K League 2, the second-highest division in the South Korean football league system. Its schedule was announced on 30 January 2013, and it began on 16 March.

Promotion and relegation
Relegated from K League
 * Gwangju FC
 * Sangju Sangmu

Promoted from Korea National League
 * Chungju Hummel
 * Goyang Hi FC
 * Suwon FC

Promoted from Challengers League
 * Bucheon FC 1995

Promoted from R League
 * Korean Police

Newly formed
 * FC Anyang

Personnel and sponsoring
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

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.

Promotion playoffs
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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.

Attendance
Attendants who entered with free ticket were not counted. Korean Police played all matches at opponents' stadiums.

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

Main awards

 * Most Valuable Player: 🇰🇷 Lee Keun-ho (Sangju Sangmu)
 * Manager of the Year: 🇰🇷 Park Hang-seo (Sangju Sangmu)
 * Top goalscorer: 🇰🇷 Lee Keun-ho (Sangju Sangmu)
 * Top assist provider: 🇰🇷 Yeom Ki-hun (Korean Police)