HMS Gloucester was a 74-gun, third rate Vengeur-class ship of the line built for the Royal Navy in the 1810s.

She played a minor role in the Napoleonic Wars and was cut down into a 50-gun fourth rate frigate in 1831–32.

[1] Gloucester was armed with twenty-eight 32-pounder cannon on her main gundeck, twenty-eight 18-pounder cannon on her upper gundeck, four 12-pounder cannon and ten 32-pounder carronades the quarterdeck, two more pairs of 12-pounder guns and 32-pounder carronades on the forecastle, and six 18-pounder carronades on the poop deck.

[4] She was ordered on 11 June 1808 from Thomas Pitcher and was laid down at his Northfleet dockyard in March 1808, launched on 27 February 1812 and was towed to Sheerness where the ship was completed on 11 June.

Gloucester cost £62,519 to build and an additional £25,343 to outfit.