Cheonan Junction (Korean: 천안 분기점; Hanja: 天安分岐點), shortly Cheonan JC, is a junction located in Dongnam-gu, Cheonan, South Chungcheong, South Korea.

Gyeongbu Expressway (No.

1), Nonsan–Cheonan Expressway (No.

The type of junction is Y-shape junction.

Asan–Cheongju Expressway will be opened, and Cheonan JC – Oksan JC segment will be overlapped with Gyeongbu Expressway and Asan–Cheongju Expressway in January 2018.