HMS Sandwich was a 90-gun second rate ship of the line of the Royal Navy, launched on 14 April 1759 at Chatham. Sandwich participated in the Battle of Cape St Vincent in 1780, where she served as Admiral Rodney's flagship. She was converted to serve as a floating battery in 1780, and from 1790 she was on harbour service. Sandwich was broken up in 1810. She was Richard Parker's "flagship" in the 1797 Nore Mutiny made up of 28 ships. The ship was later used to hang the leaders of the mutiny.