| Tatabánya–Pápa | |
| Image Alt: | Route map of railways in Hungary showing the Tatabánya–Pápa railway line |
| Owner: | Hungarian State Railways |
| Linenumber: | 13 |
| Electrification: | (Tatabánya–Környe) |
| Speed Km/H: | 80 |
| Map State: | collapsed |
The Tatabánya–Pápa railway line is a railway line in Hungary. It runs from Tatabánya to Pápa. Most of the line no longer hosts passenger service, and it is partially abandoned in the vicinity of Pápa. Hungarian State Railways owns and operates the line.
The line runs roughly east–west between Tatabánya and Pápa. In Tatabánya, the line diverges from the west of the Tatabánya railway station. In Környe, from Tatabánya, the Környe–Oroszlány railway line veers off to the south to serve Oroszlány. Electrification ends at this point, and there is no passenger service beyond Környe. The line connects with the in Kisbér, the in Veszprémvarsány, and the and in Pápa.
Hungarian State Railways operates the S12 service as part of Budapest's suburban network. The S12 runs hourly between Oroszlány and Tatabánya, with connecting service to and from Budapest Déli station.[1]