Andriashevicottus megacephalus, Andriyashev largeheaded sculpin, is a species of sculpin native to the northwestern Pacific Ocean. This species, and the genus which only contains this species, are known from a single individual (the holotype), which was collected from the Kuril Islands (Simushir Island) at a depth of 100 metres (330 ft). That specimen was 23.6 centimetres (9.3 in) long.