HMS Cyane was a Royal Navy Banterer-class sixth-rate post ship of nominally 22 guns, built in 1806 at Topsham, near Exeter, England. She was ordered in January 1805 as HMS Columbine but renamed Cyane on 6 December of that year. Cyane had a distinguished career in British service that included the award in 1847 of a clasp to the Naval General Service Medal to any still surviving crew members of either of two actions. On 20 February 1815, she and HMS Levant engaged USS Constitution; outgunned, both had to surrender. She then served as USS Cyane, including a stint on anti-slavery duties, until she was broken up in 1836.

HMS Espoir was a Cruizer-class brig-sloop of the Royal Navy, launched in 1804. She served during the Napoleonic Wars, primarily in the Mediterranean, and then briefly on the North American station. She was broken up in April 1821.