HMS Aigle was a 36-gun, fifth-rate frigate of the Royal Navy. Ordered on 15 September 1799 and built at Bucklers Hard shipyard, she was launched 23 September 1801. More than fifty of her crew were involved in the Easton Massacre when she visited Portland in April 1803 to press recruits. Her captain and three other officers stood trial for murder but were acquitted. Much of Aigle's career as a frigate was spent trying to keep the English Channel free of enemy warships and merchant vessels. On 22 March 1808, she was first into the action against two large French frigates, compelling one to seek the shelter of the Île de Groix batteries and forcing the other onto the shore.