Cleeve Common (grid reference SO990260) is a 455-hectare (1,120-acre) biological and geological Site of Special Scientific Interest in Gloucestershire, England, notified in 1974.

[1] There are several types of grassland within the site and their origination is dependent upon aspect, soil, grazing intensity and how areas of the common have been managed.

[1] The Bouguetia and phillipsiana beds of the upper Middle Inferior Oolite are confined to a very limited outcrop on Cleeve Common.

These units, which have distinctive fossil faunas of bivalves, gastropods and brachiopods, are only visible at Rolling Bank Quarry.

The Inferior Oolite hill top of Postlip Warren shows the best example of ridge and trough features.