The 2023 K League 2, also known as the Hana 1Q K League 2 for sponsorship reasons, was the 11th season of the K League 2, the second-highest division in South Korean football league system.
Following the regular season, in which each team played each other three times, Gimcheon Sangmu were the champions, gaining direct promotion to K League 1. After three rounds of play-offs, no other teams were promoted at the end of this season.
2022 champions Gwangju FC and play-off winners Daejeon Hana Citizen were promoted to the K League 1, while Seongnam FC and Gimcheon Sangmu were relegated from the top flight.
Cheonan City and Chungbuk Cheongju, which played in the K3 League until 2022, joined the K League and made their professional debuts in the K League 2.
Restricting the number of foreign players strictly to five per team, including a slot for a player from the AFC and ASEAN countries. Gimcheon Sangmu FC, being a military-owned team, is not allowed to sign any foreign players. A team could use five foreign players on the field each game, including at least one player from the AFC and ASEAN.
Players in bold were registered during the mid-season transfer window.
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The first round was contested between the fourth and fifth-placed teams, and its winners played the third-placed team in the second round. When the first and second round matches were finished as draws, their winners were decided on the regular season rankings without extra time and penalty shoot-outs.
The winners of the second round and the runners-up competed with the tenth and eleventh-placed teams of the K League 1, respectively, in the final round for the K League 1 spots of the next season. Each match of the final round was a two-legged tie.
Gangwon FC won 2âÂÂ1 on aggregate and therefore both clubs remain in their respective leagues.
Suwon FC won 6âÂÂ4 on aggregate and therefore both clubs remain in their respective leagues.
The 2023 K League Awards was held on 4 December 2023.
Attendants who entered with free ticket were not counted.