| Saint-Amadou | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Saint-Amadou (Ariège).svg |
| Arrondissement: | Pamiers |
| Canton: | Pamiers-2 |
| Insee: | 09254 |
| Postal Code: | 09100 |
| Mayor: | Serge Villeroux[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.1122°N 1.7244°W |
| Elevation M: | 283 |
| Elevation Min M: | 253 |
| Elevation Max M: | 334 |
| Area Km2: | 4.64 |
Saint-Amadou (in French pronounced as /sɛ̃.t‿amadu/; Occitan (post 1500);: Sant Amador) is a commune in the Ariège department in southwestern France.
Inhabitants are called Saint-Amadouens.