Jasus lalandii, the Cape rock lobster or West Coast rock lobster or South African rock lobster, is a species of spiny lobster found off the coast of Southern Africa. It is not known whom the specific epithet lalandii commemorates, although it may the French naturalist and taxonomer Pierre Antoine Delalande.

Distribution Jasus lalandii occurs in shallow waters from Cape Cross, Namibia to Algoa Bay, South Africa, straddling the Cape of Good Hope. It may be found as deep as 46 metres (150 ft) and is usually found on rocky bottoms.

Culinary use It is called crayfish (Afrikaans: kreef) and is often braaied, particularly in the coastal areas along its range, however overfishing has depleted stocks.

Orange to red-brown, with long antennae extending from the front of the head. Tail fan orange, blue and green. Thorax spiny. Eyes black and stalked.

Generally found on rocky reefs, where it prefers the shelter of crevices.