| Isla San Francisco | |
| Image Caption: | Isla San Francisco |
| Map: | Mexico |
| Location: | Gulf of California |
| Coordinates: | 24.8308°N -110.5748°W |
| Area Km2: | 3.78 |
| Elevation M: | 194 |
| Country: | Mexico |
| Country Admin Divisions Title: | State |
| Country Admin Divisions: | Baja California Sur |
| Population: | Uninhabited |
Isla San Francisco[1] is a small island in Mexico located in the Gulf of California off the eastern coast of Baja California Sur, south of Isla San José. Uninhabited, the island is located in the southern portion of the Gulf of California, north of the Bay of La Paz, some 75km (47miles) north of the town of La Paz and is part of the La Paz Municipality. It is separated from the peninsula of Baja California by a channel about 10km (10miles) wide. The island is 2.5km (01.6miles) long and 2.5km (01.6miles) wide with maximum total area of 3.78km².
Isla San Francisco has 10 species of reptiles, including the endemic Isla San Francisco whiptail (Aspidoscelis franciscensis).[2]