The surge wrasse, Thalassoma purpureum, is a species of wrasse native to the southeast Atlantic Ocean through the Indian and Pacific Oceans, where it inhabits reefs and rocky coastlines in areas of heavy wave action at depths from the surface to 10 m (33 ft). It can grow to 46 cm (18 in) in total length and 1.2 kg (2.6 lb) in weight. This species is of minor importance to local commercial fisheries, is popular as a game fish, and can be found in the aquarium trade.