| San Carlos | |
| Other Name: | Gran Caldera de Luba |
| Elevation M: | 2261 |
| Elevation Ref: | [1] |
| Prominence M: | 1539 |
| Prominence Ref: | [2] |
| Map: | Equatorial Guinea |
| Map Size: | 250 |
| Listing: | Ultra |
| Location: | Bioko, Equatorial Guinea |
| Coordinates: | 3.3608°N 8.5392°W |
| Type: | Shield volcano |
| Last Eruption: | Unknown |
San Carlos (also Gran Caldera de Luba, or simply Caldera) is a basaltic shield volcano with a broad summit caldera on the island of Bioko, Equatorial Guinea.[3] With an elevation of 2,261 metres above sea level it is the second highest peak in Equatorial Guinea.