Seonghwan station
| Station nameplate | |
| Korean name | |
| Hangul | 성환역 | 
| Hanja | |
| Revised Romanization | Seonghwan-yeok | 
| McCune–Reischauer | Sŏnghwan-yŏk | 
| General information | |
| Location | 449-128 Seonghwanni, 237-5 Seonghwan 1-ro, Seonghwan-eup, Seobuk-gu, Cheonan-si, Chungcheongnam-do | 
| Coordinates | 36°54′56″N 127°07′40″E / 36.91556°N 127.12778°E | 
| Operated by | Korail | 
| Line(s) | Line 1 | 
| Platforms | 4 | 
| Tracks | 6 | 
| Construction | |
| Structure type | Aboveground | 
| Key dates | |
| January 1, 1905 January 20, 2005 (Line 1) | Line 1 opened | 
| Passengers | |
| (Daily) Based on Jan-Dec of 2012. KR: 400 Line 1: 9,944 | |
Seonghwan Station is a subway station in the province of Chungcheongnam-do. It is located north of Cheonan on the Gyeongbu Line. It is also served by services on Seoul Subway Line 1.