| Settlement Type: | Town |
| Official Name: | San Mateo |
| Pushpin Map: | Peru |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Lima |
| Subdivision Type2: | Province |
| Subdivision Name2: | Huarochirí |
| Subdivision Type3: | District |
| Subdivision Name3: | San Mateo |
| Leader Title: | Mayor |
| Leader Name: | Luis Eduardo Rincon Franco (2019-2022) |
| Population Density Km2: | auto |
| Timezone: | PET |
| Utc Offset: | -5 |
| Coordinates: | -11.7586°N -76.3°W |
San Mateo or San Mateo de Huánchor is the capital of San Mateo District in Huarochirí Province, Peru.