| Official Name: | Luba |
| Pushpin Map: | Equatorial Guinea Bioko#Equatorial Guinea |
| Pushpin Map Caption: | Location in Bioko |
| Pushpin Map1: | Equatorial Guinea |
| Pushpin Map Caption1: | Location in Equatorial Guinea |
| Subdivision Type: | Country |
| Subdivision Name: |  Equatorial Guinea |
| Subdivision Name1: | Bioko Sur |
| Population As Of: | 2012 |
| Population Total: | 7739 |
| Population Metro: | 24000 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Coordinates: | 3.45°N 41°W |
| Elevation M: | 181 |
| Blank Name: | Climate |
| Blank Info: | Am |
Luba (formerly San Carlos) (pop. 7,000) is the second-largest town on Bioko in Equatorial Guinea, a port for the logging industry on the island's west coast beneath volcanic peaks. Attractions in Luba include several beaches and a colonial hospital.
The city may be reached either by sea or by a main road linking Luba to the country's capital, Malabo. The road is now accessible; it takes about an hour to drive from Malabo to Luba. In 1999, a free port opened near the town, creating deepwater access for larger and oil industry vessels, an alternative to the congested port of Malabo for re-supplying on fuel, water and other materials.[1] As of 2010 a new highway was under construction from Luba via Belebú Balachá through the Luba Crater Scientific Reserve to Ureca near the south coast.[2]