| Saint-Agnan | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Agnan (Tarn).svg |
| Arrondissement: | Castres |
| Canton: | Les Portes du Tarn |
| Insee: | 81236 |
| Postal Code: | 81500 |
| Mayor: | Brigitte Aubert-Parayre[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Tarn-Agout |
| Coordinates: | 43.6969°N 1.735°W |
| Elevation M: | 214 |
| Elevation Min M: | 155 |
| Elevation Max M: | 243 |
| Area Km2: | 6.88 |
Saint-Agnan (in French pronounced as /sɛ̃.t‿aɲɑ̃/; Languedocien: Sanch Inhan) is a commune in the Tarn department in southern France.