Ecsenius lubbocki, known commonly as the Lubbock's combtooth-blenny in Indonesia, is a species of combtooth blenny in the genus Ecsenius. It is found in coral reefs in Phuket, Thailand, in the eastern Indian ocean. It can reach a maximum length of 4 centimetres. Blennies in this species feed primarily off of plants, including benthic algae and weeds.