Three ships of the British Royal Navy have been named HMS Nancy.

• HMS Nancy (1794) was a 72-ton fireship bought in April 1794 and sold in December 1801.
• HMS Nancy (1808) was a 16-gun brig purchased in South America in 1808 (confirmed in 1809) and sold in 1813.
• HMS Nancy was a mercantile schooner launched at Detroit in 1789 that served the Provincial Marine as a supply ship during the War of 1812. The Royal Navy acquired her from the Provincial Marine in 1814; her crew scuttled her on 14 August 1814 to prevent her capture.

• HM Hired armed cutter Nancy

• Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.

List of ships with the same or similar names

This article includes a list of ships with the same or similar names. If an internal link for a specific ship led you here, you may wish to change the link to point directly to the intended ship article, if one exists.