Cockham Wood Fort was constructed in 1669 on the north bank of the River Medway in Kent in south-east England.

In conjunction with Fort Gillingham it took on the role of defending Chatham Dockyard from seaborne attack, a role which had been performed by Upnor Castle for the previous hundred years.

Built in 1669 by Sir Bernard de Gomme as a direct result of the Dutch raid on Chatham Dockyard in 1667.

It was constructed with a brick base supporting an upper tier of earthworks.

Some of its structure is still standing, the most obvious part being the brickwork of the lower battery which is a prominent feature on the shoreline of the River Medway.