Vementry (Old Norse: "Vemunðarey"[5]) is an uninhabited Scottish island in Shetland on the north side of the West Mainland, lying south of Muckle Roe.

[6] Also on the island are two 6-inch QF Mk I First World War gun emplacements which overlook the narrow entrance into the former naval anchorage of Busta Voe on Swarbacks Head, a cliff standing around 49 metres (161 feet) above sea level.

They were manned by a mixed crew of RN sailors and Royal Marines.

A simple stone-and-concrete fire control pillbox also exists on the site.

Vementry is also the name of a small farm on Mainland, Shetland, immediately south of the island.