| Douillet | |
| Commune Status: | Commune |
| Arrondissement: | Mamers |
| Canton: | Sillé-le-Guillaume |
| Insee: | 72121 |
| Postal Code: | 72590 |
| Mayor: | Nicole Calluaud[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Haute Sarthe Alpes Mancelles |
| Coordinates: | 48.2731°N -0.0425°W |
| Elevation M: | 110 |
| Elevation Min M: | 72 |
| Elevation Max M: | 164 |
| Area Km2: | 18.99 |
Douillet (in French pronounced as /dujɛ/) is a commune in the Sarthe department in the Pays de la Loire region in north-western France.