HMS Yarmouth was a 64-gun third rate ship of the line of the Royal Navy, designed and built by Joseph Allin the younger at Deptford Dockyard.

She was previously ordered to the dimensions specified in the 1741 proposals for modifications to the 1719 Establishment, but the Admiralty had very quickly concluded that these were too small, and as an experiment in 1742 authorised an addition of 6 ft to the planned length, and Yarmouth was re-ordered to the enlarged design in June 1742.

[3] On 7 March 1778 Yarmouth was attacked by the American frigate Randolph of 36 guns and the 20-gun sloop, General Moultrie.

HMS Yarmouth took 2 to 3 hours to eventually reach the men, who were standing on a small float, and were brought aboard.

They managed to tie together a makeshift raft from the floating debris and were fortunate to survive by using a blanket to capture rainwater during their stranded five nights at sea.