| Oyace | |
| Official Name: | Comune di Oyace Commune d'Oyace |
| Coordinates: | 45.85°N 30°W |
| Province: | none |
| Frazioni: | Bérrioz, Chez les Brédy, Gallian, La Crétaz (chef-lieu), Sergnau, Condemine, Closé, Bouyoz, Chez les Chenaux, Grenier, Vernosse, Voisinal, Pied de Ville |
| Area Total Km2: | 30 |
| Population Footnotes: | [1] |
| Population Total: | 209 |
| Population As Of: | 31 December 2022 |
| Population Demonym: | Rossons |
| Elevation M: | 1377 |
| Saint: | Michael (archangel) |
| Day: | 29 September |
| Postal Code: | 11010 |
| Area Code: | 0165 |
| Istat: | 7047 |
Oyace (Valdôtain: Oyase) is a town and comune in the Aosta Valley region of north-western Italy.