Cleeve Hill (grid reference ST056428) is a 15.1 hectare (37.4 acre) biological Site of Special Scientific Interest between Old Cleeve and Watchet in Somerset, notified in 1989.

The site covers a moderate to steeply sloping south face of the valley of the Washford River.

It supports a rich and diverse calcareous grassland community with associated mixed woodland and scrub.

The site contains two species of plant which are nationally rare in Great Britain, Nit-grass (Gastridium ventricosum) and Rough Marsh-mallow (Althaea hirsuta).

This article about a Site of Special Scientific Interest in England is a stub.