| Armous-et-Cau | |
| Commune Status: | Commune |
| Arrondissement: | Mirande |
| Canton: | Pardiac-Rivière-Basse |
| Insee: | 32009 |
| Postal Code: | 32230 |
| Mayor: | Jean-Paul Doubrere[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Cœur Astarac Gascogne |
| Coordinates: | 43.5742°N 0.1908°W |
| Elevation M: | 175 |
| Elevation Min M: | 152 |
| Elevation Max M: | 279 |
| Area Km2: | 9.33 |
Armous-et-Cau is a commune in the Gers department in southwestern France.