HMS Vengeur was a 74-gun third-rate Vengeur-class ship of the line of the Royal Navy, launched on 19 June 1810 at Harwich.

On 30 August 1810, Captain Thomas Brown took command of Vengeur, the flagship of Admiral Sir Joseph Sidney Yorke.

Brown escorted to Portugal a large body of troops sent as reinforcements to the Duke of Wellington's army there.

[a] In May 1814, the 9th Regiment of Foot marched from Bayonne to Bordeaux and embarked on York and Vengeur to sail to Quebec to lend support to the British Army in the fight against the Americans during the War of 1812.

[3] The Commanding Officer of the Vengeur's Marine detachment, Brevet Major Thomas Adair,[4] was made a Companion of the Order of the Bath for leading a party of 100 Royal Marines on a successful assault on the left bank of the Mississippi River.

He then carried Ferdinand I, King of the Two Sicilies, from Naples to Livorno on his way to attend the Congress of Laibach (modern Ljubljana).