| Location: | Southwest of Pico da Antónia, south of Porto Rincão on the island of Santiago, Cape Verde |
| Coordinates: | 15.0203°N -23.7236°W |
| Length: | 5km (03miles) |
| Width: | 3km (02miles) |
| Pushpin Map: | Cape Verde |
Baía do Inferno (Portuguese for "bay of hell", also: Baía de Santa Clara) is a bay on the southwest coast of the island of Santiago in Cape Verde in the Atlantic Ocean. The bay is completely within the municipality of Santa Catarina. It is a large and relatively sheltered bay, characterised by steep cliffs, more than 400 m high in some places.[1] The nearest settlement is Entre Picos de Reda, 3 km inland. Rincão lies 4 km north along the coast, Porto Mosquito 6 km southeast.
The bay forms a part of the Important Bird Area "Coastal cliffs between Porto Mosquito and Baia do Inferno", which covers 160 ha and about 8 km of coastline. The site has been identified as an IBA by BirdLife International because the cliffs support 25–30 breeding pairs of red-billed tropicbirds. It also supports the largest colony of brown booby in Cape Verde.[1] The adjacent marine area (13 km2, maximum depth 244 m) has also been identified as an IBA, because of its importance for the red-billed tropicbird.[2]