 | |
| Organising body | Korea Football Association |
|---|---|
| Founded | 2020 |
| Country | South Korea |
| Number of teams | 16 |
| Level on pyramid | 4 |
| Promotion to | K3 League |
| Domestic cup(s) | Korean FA Cup |
| Current champions | Jeonbuk Hyundai Motors B (2024) |
| Most championships | Paju Citizen Pocheon Citizen Goyang KH Yeoju FC Jeonbuk Hyundai Motors B (1 title each) |
| TV partners | Naver Sports STN Sports Afreeca TV |
| Website | kfa.or.kr (in Korean) |
| Current: 2025 K4 League | |
| K4 League | |
| Hangul | K4리그 |
|---|---|
| Revised Romanization | K4 Rigeu |
| McCune–Reischauer | K4 Rigŭ |
The K4 League is the fourth-highest division in the South Korean football league system. It is regarded as the successor to the K3 League Basic, the second division of amateur K3 League founded in 2017.
Since 2021, Korea Football Association has allowed reserve teams of the K League to join the K4 League.