HMS St Vincent was a 120-gun first-rate ship of the line of the Royal Navy, laid down in 1810 at Devonport Dockyard and launched on 11 March 1815.

[1] She saw service at sea in the mid 19th century before becoming a training ship in Portsmouth Harbour until she was decommissioned in 1906.

On 18 February 1834, St Vincent was at Malta when the British merchant schooner Meteor was destroyed there by the explosion of her cargo of gunpowder with the loss of 28 lives.

From May 1847 until April 1849 she was the flagship of Rear-Admiral Sir Charles Napier, commanding the Channel Fleet.

After a spell in ordinary at Portsmouth, from July to September 1854, during the Crimean War, she was used to transport French troops to the Baltic.