| Thouars-sur-Arize | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Girons |
| Canton: | Arize-Lèze |
| Insee: | 09310 |
| Postal Code: | 09350 |
| Mayor: | Gaëtano Fallico[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.1861°N 1.2417°W |
| Elevation M: | 244 |
| Elevation Min M: | 232 |
| Elevation Max M: | 320 |
| Area Km2: | 2.34 |
Thouars-sur-Arize is a commune in the Ariège department in southwestern France.
Inhabitants of Thouars-sur-Arize are called Thouarais.