- The first HMS Leonidas (1807), launched in 1807, built by John Pelham of Frindsbury was a 36-gun fifth-rate frigate, used as a powder hulk from 1872 and sold in 1894.
- The second HMS Leonidas (1913), launched in 1913, was a Laforey-class destroyer. She served with the 3rd Destroyer Flotilla and as a convoy escort in World War I and was broken up in 1922.
- Colledge, J. J.; Warlow, Ben (2006) . 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. OCLC 67375475.
|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.|