HMS Actaeon was a 28-gun Enterprise-class sixth-rate frigate of the Royal Navy.
The Actaeon was first commissioned in June 1775 under the command of Captain Christopher Atkins, as part of a class of 27 vessels that were designed in 1770 by John Williams.
In August 1775, she was driven ashore at Lymington, Hampshire. She was refloated on 31 August and taken in to Portsmouth, Hampshire for repairs.