Bant’s Carn is a Scillonian entrance grave on the island of St Mary’s in the Isles of Scilly. A military battery built in 1905 also stands nearby.
The tomb measures around 8 metres (26 ft) in diameter and stands on a low platform 12 metres (39 ft) across. The entrance is 4.5 metres (15 ft) long and 1 metre (3.3 ft) high, with no roof. It is separated from the burial chamber by a jamb. The chamber itself measures around 5 metres (16 ft) in length and 1.5 metres (4.9 ft) in width and height, with four large capstones serving as a roof.
The tomb was excavated in 1900 by George Edward Bonsor Saint Martin, who found the remains of four cremations at the back of the chamber, along with sherds of Neolithic and Bronze Age pottery.