| Sinansan Line | |
|---|---|
 | |
| Overview | |
| Native name | 신안산선(新安山線) Sinansan-seon |
| Status | Under Construction |
| Termini | |
| Stations | 13 (17) |
| Service | |
| Type | Rapid transit |
| System | Seoul Metropolitan Subway |
| History | |
| Opened | April 2025 |
| Technical | |
| Line length | 46.9 km (29.1 mi) |
| Number of tracks | 2 |
The Sinansan Line (Hangul: 신안산선, Hanja: 新安山線, meaning "New Ansan Line") is the tentative name of a commuter rail line that will eventually link Cheongnyangni station with western Gyeonggi province, passing through key areas of the Seoul metropolitan area, including Yeouido, Yeongdeungpo and Gwangmyeong station.