Carn Ban is a Neolithic chambered tomb located on the Isle of Arran in Scotland ().
Carn Ban is situated in the southern part of Arran, and a walk of is required to reach the site. It is on a steep south-west facing slope in a forest clearing partly covered in grass.
It is considered as one of the most famous of the Neolithic long cairns of south-west Scotland. It is of a type found across south-west Scotland known as a Clyde cairn. It is trapezoidal in shape, with a semicircular forecourt at the upper northeast end. The forecourt has an entrance leading into a long chamber divided into compartments by cross-slabs, similar to the arrangement at Torrylin Cairn, about to the southwest. The chamber of Carn Ban is 30 metres long and 18 metres broad. The tomb was excavated in the late 19th century, but the only finds were a flint flake, an unburnt fragment of human bone, and a pitchstone flake. The site has been designated a scheduled monument by Historic Environment Scotland.