| Phaffans | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de Phaffans (Territoire de Belfort).svg |
| Coordinates: | 47.6608°N 6.9353°W |
| Insee: | 90080 |
| Postal Code: | 90150 |
| Arrondissement: | Belfort |
| Canton: | Grandvillars |
| Mayor: | Christine Bainier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Grand Belfort |
| Elevation Min M: | 345 |
| Elevation Max M: | 381 |
| Area Km2: | 3.24 |
Phaffans (in French pronounced as /fafɑ̃/) is a commune in the Territoire de Belfort department in Bourgogne-Franche-Comté in northeastern France.