HMS Marlborough was a 74-gun third-rate ship of the line of the Royal Navy, launched on 26 August 1767 at Deptford and built by the master shipwright Adam Hayes, at a cost of £33,319. She was one of the Ramillies class built to update the Navy and replace ships lost following the Seven Years' War. She was first commissioned in 1771 under Captain Richard Bickerton as a guard ship for the Medway and saw active service in the American Revolutionary War and on the Glorious First of June.