| Official Name: | San Antonio |
| Settlement Type: | Seaside resort |
| Pushpin Map: | Uruguay |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Uruguay |
| Subdivision Type: | Country |
| Subdivision Name: | Uruguay |
| Subdivision Type1: | Department |
| Subdivision Name1: | Rocha Department |
| Population As Of: | 2011 |
| Population Total: | 6 |
| Timezone: | UTC -3 |
| Coordinates: | -34.5508°N -54.0792°W |
| Elevation M: | 5 |
San Antonio is a seaside locality in Uruguay, Rocha Department.
The town is located near Route 10, near the seaside resort city of La Paloma.
San Antonio is in the Southern Hemisphere's temperate zone and has four seasons. Temperatures average 21 °C to 27 °C (70 °F to 80 °F) in summer and 10 °C and 16 °C (50 °F to 60 °F) in winter.
In 2011 San Antonio had a population of 6 permanent inhabitants.[1] During the summer season the number or residents is increased significantly due to tourism.