Algoa Bay is a bay in the Eastern Cape, South Africa. It is located in the east coast, 425 miles (683 kilometres) east of the Cape of Good Hope, and the origin of Sardine Run along the South African coast.
Algoa Bay is bounded in the west by Cape Recife and in the east by Cape Padrone. The bay is up to 436 m (1,430 ft) deep. The harbour city of Port Elizabeth is situated adjacent to the bay, as is the new Coega deep water port facility.