| Saint-Hilaire-sur-Yerre | |
| Arrondissement: | Châteaudun |
| Canton: | Brou |
| Commune: | Cloyes-les-Trois-Rivières |
| Insee: | 28340 |
| Postal Code: | 28220 |
| Coordinates: | 48.0283°N 1.2553°W |
| Elevation M: | 101 |
| Elevation Min M: | 95 |
| Elevation Max M: | 155 |
| Area Km2: | 16.84 |
| Population: | 559 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Saint-Hilaire-sur-Yerre (in French pronounced as /sɛ̃.t‿ilɛʁ syʁ jɛʁ/) is a former commune in the Eure-et-Loir department in northern France. On 1 January 2017, it was merged into the new commune Cloyes-les-Trois-Rivières.[2]