Aelurosaurus ("cat lizard", from Ancient Greek αἴλουρος "cat" and σαῦρος "lizard") is an extinct genus of gorgonopsian therapsid from the Late Permian of South Africa. It was first named by Owen in 1881, and contains four species, A. felinus, A. polyodon, A. whaitsi, and A. wilmanae. It had a very small size, reaching only 0.70 m (2.3 ft) in length with a 13 cm skull.