HMS Harwich was a 50-gun fourth rate ship of the line of the English Royal Navy, ordered on 18 November 1694 as one of two such ships (the other was the Pendennis) to be built by commercial contract by Robert and John Castle at their yard at Deptford.

The Harwich was launched on 14 September and commissioned under Captain Andrew Douglas 1695.

[1] The Harwich was one of four ships sent to Madagascar on an anti-piracy mission under Thomas Warren in 1699.

[2] Warren died on 12 November at Madagascar and was succeeded in command by Captain William Cock.

This article about a ship of the line of the United Kingdom is a stub.