2015 Korea National League
The 2015 Korea National League, also known as the Incheon International Airport Korea National League due to sponsorship reasons, was the 13th season of the Korea National League, the third tier of South Korea's football league system. The 2015 season operated in the same system as in 2014, with the ten member clubs playing each other a total of three times each before the top four sides compete in the post-season championship playoff series.
2015 season teams
- Busan Transportation Corporation FC
- Changwon City FC
- Cheonan City FC
- Daejeon Korail FC
- Gangneung City FC
- Gimhae City FC
- Gyeongju Korea Hydro & Nuclear Power FC
- Mokpo City FC
- Ulsan Hyundai Mipo Dockyard Dolphin FC
- Yongin City FC
| Team | Location | Stadium | Stadium capacity |
| Busan Transportation Corporation | Busan | Busan Gudeok Stadium | |
| Changwon City | Changwon | Changwon Football Center | |
| Cheonan City | Cheonan | Cheonan Stadium | |
| Daejeon Korail | Daejeon | Daejeon Hanbat Stadium | |
| Gangneung City | Gangneung | Gangneung Stadium | |
| Gimhae City | Gimhae | Gimhae Stadium | |
| Gyeongju Korea Hydro & Nuclear Power | Gyeongju | Gyeongju Civic Stadium | |
| Mokpo City | Mokpo | Mokpo International Football Center | |
| Ulsan Hyundai Mipo Dockyard Dolphin | Ulsan | Ulsan Stadium | |
| Yongin City | Yongin | Yongin Football Center |