| Bird Island | |
| Image Alt: | Aerial image of an island. |
| Pushpin Map: | United States San Francisco Bay Area#USA California#USA |
| Coordinates: | 37.5511°N -122.2369°W |
| Location: | Northern California |
| Waterbody: | San Francisco Bay |
| Area Sqft: | or |
| Area Acre: | --> |
| Length Ft: | --> |
| Width Ft: | --> |
| Coastline Ft: | --> |
| Elevation Ft: | 7 |
| Country: | United States |
| Country Admin Divisions Title: | State |
| Country Admin Divisions Title 1: | County |
| Country Admin Divisions 1: | San Mateo |
Bird Island is an island in San Francisco Bay. It is in San Mateo County, California. Its coordinates are 37.5511°N -122.2369°W, and the United States Geological Survey gave its elevation as in 1998. It appears on a 2012 USGS map of the area.