| Seal Rock | |
| Local Name: | --> |
| Nickname: | Sea Lion Rock |
| Map: | San Francisco Bay Area#California#USA |
| Coordinates: | 37.3916°N -122.4247°W |
| Location: | Pacific Ocean |
| Area Ha: | 0.9 |
| Length M: | 180 |
| Width M: | 50 |
| Coastline M: | 535 |
| Elevation M: | 1 |
| Country: | United States |
| Country Admin Divisions Title: | State |
| Country Admin Divisions: | California |
| Country Admin Divisions Title 1: | County |
| Country Admin Divisions 1: | San Mateo |
| Country Area M2: | or |
| Country Area Ha: | --> |
| Country 1 Area M2: | or |
| Country 1 Area Ha: | --> |
Seal Rock is a small island in San Mateo County, California.[1] It lies just off the county's Pacific coast, about halfway between Half Moon Bay and San Gregorio.