Ophichthus megalops is an eel in the family Ophichthidae (worm/snake eels). It was described by Hirotoshi Asano in 1987. It is a marine, temperate water-dwelling eel which is known from Japan, in the northwestern Pacific Ocean. It is known to dwell at a depth of 360 metres (1,180 ft). Males can reach a maximum total length of 33.2 centimetres (13.1 in).