HMS Powerful (1783)

HMS Powerful was a 74-gun third rate ship of the line of the Royal Navy, launched on 3 April 1783 at Blackwall Yard, London.

In 1805 the ship arrived too late to take part in the Battle of Trafalgar but was then detached to reinforce the East India squadron. On 13 June 1806 she captured the French privateer Henriette of Trinconmalee, Sri Lanka. At the Action of 9 July 1806 disguised as an east Indiaman she captured, with the sloop Rattlesnake, the Bellone, which had been a serious threat to British trade.

She was broken up in 1812.