HMS Hamadryad

HMS Hamadryad may refer to:

• Spanish frigate Ninfa (1795) captured by the British in the Action of 26 April 1797 and taken into service as HMS Hamadryad. She was wrecked off the coast of Portugal in December that same year.
• HMS Hamadryad (1804), the former Spanish frigate Matilda captured by the British in 1804 and renamed HMS Hamadryad.
• HMS Hamadryad (1823), a 46-gun fifth-rate modified Leda-class frigate of the Royal Navy launched on 25 July 1823.