Ophidion barbatum, the snake blenny, is a fish species in the family Ophidiidae.

It is widespread in the eastern Atlantic from southern England to Senegal in West Africa, and the northern Mediterranean.

It is a marine subtropical demersal fish, up to 25 centimetres (9.8 in) long.

[2] As most fish, the Snake blenny harbours a variety of parasites.

The species was described in 1962 by Maria Prost and Louis Euzet from the coasts of France in the Mediterranean Sea [3] and found 58 years later off Algeria.