| Thieffrain | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Ecuthieffrain.jpg |
| Arrondissement: | Troyes |
| Canton: | Bar-sur-Seine |
| Insee: | 10376 |
| Postal Code: | 10140 |
| Mayor: | Colette Laplanche[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 48.1967°N 4.4414°W |
| Elevation M: | 179 |
| Area Km2: | 7.36 |
Thieffrain (pronounced as /fr/) is a commune in the Aube department in north-central France.