| Gwacheon Line | |
| Native Name: | 과천선 |
| Native Name Lang: | ko |
| Type: | Rapid transit |
| System: | Seoul Metropolitan Subway |
| Status: | Operational |
| Locale: | Gyeonggi Province |
| Stations: | 10 |
| Owner: | Government of South Korea |
| Operator: | Korail |
| Linelength: | 14.4 km |
| Tracks: | 2 |
| Electrification: | 1,500 V DC & 25 kV AC (60 Hz) |
| Map Name: | map_name |
| Map State: | uncollapsed |
| Box Width: | auto |
| Gwacheon Line | |
| Rr: | Gwacheon-seon |
| Mr: | Kwach'ŏn-sŏn |
| Hangul: | 과천선 |
| Hanja: | 果川線 |
Gwacheon Line is a metropolitan rail line operated by Korail in Gyeonggi Province, South Korea. All trains is operated as a through service into Seoul Metro's Line 4 and Ansan Line on the other end.
From January 15, 1993, to March 31, 1994, the Seoul Metropolitan Subway Line 1 operated like the Ansan Line, and since the opening of all sections on April 1, 1994, it has been operated as a part of the Metropolitan Subway Line 4.
| Station Number | Station Name English | Station Name Hangul | Station Name Hanja | Transfer | Location | ||||
| ↑ Through-services to/from Oido via Ansan Line ↑ | |||||||||
| 443 | Geumjeong | Korean: [[:ko:금정역|금정]] | Gunpo | ||||||
| 442 | Beomgye | Korean: [[:ko:범계역|범계]] | Anyang | ||||||
| 441 | Pyeongchon | Korean: [[:ko:평촌역|평촌]] | |||||||
| 440 | Indeogwon | Korean: [[:ko:인덕원역|인덕원]] | (2026) Indeogwon–Dongtan Line (2026) | ||||||
| TBD | Gwacheon Bio Information Technology Zone (2024) | Korean: [[:ko:과천지식정보단지역|과천지식정보단지]] | 果川知識情報團地驛 | Gwacheon | |||||
| 439 | Government Complex Gwacheon | Korean: [[:ko:정부과천청사역|정부과천청사]] | |||||||
| 438 | Gwacheon | Korean: [[:ko:과천역|과천]] | |||||||
| 437 | Seoul Grand Park | Korean: [[:ko:대공원역 (과천)|대공원]] | |||||||
| 436 | Seoul Racecourse Park | Korean: [[:ko:경마공원역|경마공원]] | |||||||
| 435 | Seonbawi | Korean: [[:ko:선바위역|선바위]] | |||||||
| 434 | Namtaeryeong | Korean: [[:ko:남태령역|남태령]] | Seocho District, Seoul | ||||||
| ↓ Through-services to/from Danggogae via Seoul Subway Line 4 ↓ | |||||||||
As part of the first new town development in the early 1990s, the Gwacheon Line was built under the leadership of the Korea Railroad Administration (currently Korea Railroad Corporation) for the purpose of connecting Sanbon New Town and Pyeongchon New Town with Gwacheon City and Seoul Metropolitan City. From January 15, 1993, to March 31, 1994, the Seoul Metropolitan Subway Line 1 operated like the Ansan Line, and since the opening of all sections on April 1, 1994, it has been operated as a part of the Metropolitan Subway Line 4.