Castle Ring is an Iron Age hill fort, situated high up on the southern edge of Cannock Chase (The Chase), Staffordshire, England.

It is the highest point on The Chase with an elevation of 242 metres (794 ft).

It is near the village of Cannock Wood, south of Rugeley and north of Burntwood, adjacent to the Heart of England Way.

There are excellent views over The Chase, the Trent Valley and Staffordshire more generally.

Castle Ring is thought to have first been occupied c. 500 BCE by an Ancient British (Celtic) tribe named the Cornovii.