HMS Sandwich was a 90-gun second rate ship of the line of the Royal Navy, launched on 14 April 1759 at Chatham.

[2] Sandwich had already been ordered by this point, having been done so on 28 October to Chatham Dockyard, where the ship would be built by shipwright John Lock.

Speke was replaced by Captain Richard Norbury in July, and at the same time Sandwich became the flagship of Rear-Admiral Francis Geary.

The ship subsequently served in an expedition to Quiberon Bay in 1760, before joining the fleet of Admiral Edward Boscawen in the spring.

Sandwich then took part in the Capture of Belle Île between 6 April and 8 June 1761, moving to the blockade of Basque Roads in the following year.

On 3 February 1781 Sandwich took part in the Capture of Sint Eustatius, and in August of that year Young was replaced in command by Captain Sylverius Moriarty, who sailed the ship to Jamaica.

In September of the latter year Sandwich was paid off again, and recommissioned in November as a prison ship with the rating of a sloop.

[5] Sandwich was paid off in April 1802 with the Peace of Amiens, but recommissioned in July 1803 with the start of the Napoleonic Wars under the command of Emmanuel Hungerford.