Cliffy Island Lighthouse, Maritime beacon on Cliffy Island, Victoria, Australia

Cliffy Island Lighthouse stands on Cliffy Island, the summit of a granite submarine mountain in Bass Strait, about 32 km south of Port Albert. The tower was built in 1884 from granite quarried on the island, and its light, focused through a Fresnel lens, sits 52 m above sea level.

Built in 1884 from granite quarried on Cliffy Island itself, the lighthouse was staffed by a head keeper and two assistants. Their stone and wooden houses were demolished in 1971 when the light was automated; the surrounding stone walls still stand.

The island's name comes from its steep granite cliffs, quarried on site for the 1884 tower. The keepers' stone cottage and the wooden duplex for two assistants were demolished in 1971 when the light was automated, but the surrounding stone walls still stand. The light flashes white every five seconds.

The lighthouse operates today using solar power and is managed by the Australian Maritime Safety Authority. Access to the island is only possible by helicopter, which severely limits any visits.

The head keeper's stone cottage was built to nearly the same design as the one at Cape Nelson, both raised in 1884, probably from a single set of blueprints. The two assistant keepers lived with their families in a separate wooden duplex. When automation came in 1971 the houses were demolished, but the stone walls that enclosed them still stand on the island.