2023 K4 League

The 2023 K4 League was the fourth season of the K4 League.
Defending champions Goyang KH was dissolved. Runners-up Yangpyeong FC and promotion play-offs winners Chuncheon Citizen were promoted to the K3 League, while Dangjin Citizen were relegated from the K3 League.
The 16 participating teams played each other twice. The top two teams were promoted to the K3 League and the third and fourth-placed teams qualified for the promotion play-offs.
On 3 July 2023, Goyang Happiness were dissolved due to their financial crisis and Korea Football Association decided to nullify Goyang Happiness' results.

Teams

Team changes

Relegated from K3 League

Dangjin Citizen

Newly joined

Busan IPark Futures~~Goyang Happiness~~
Sejong Vanesse

Promoted to K3 League

Withdrawn

Goyang KH
FC Namdong

League table

Promotion play-offs

Final

The promotion play-offs final was contested between the 14th-placed team of K3 League and the winners of the first round.