Parablennius tasmanianus is a species of combtooth blenny found in the eastern Indian ocean along the southern coast of Australia to New Zealand. A common blenny in southern Australia with a large head, a blunt snout with a steep profile and a large frilled tentacle over the eye.
Parablennius tasmanianus body colour is pale creamish with a pattern of irregular bars and blotches on the sides, and two dark bars radiating from below the eye. Large adults are often bluish-grey in colour.
Tasmanian blennies are often seen in tide pools and around jetties along the south coast. Individuals are often seen poking their heads from holes and crevices, or even from discarded cans and bottles.