HMS Edgar was a 60-gun fourth rate ship of the line of the Royal Navy, launched on 16 November 1758 at Rotherhithe.

Edgar subsequently fought at the victorious Battle of Lagos on 19 August of the same year, and then in 1760 sailed to join the Western Squadron.

As such Edgar served at the Siege of Havana between 6 June and 13 August of the same year, and at the end of the Anglo-Spanish War in 1763 she returned home to be paid off.

[1] Edgar was recommissioned in December 1763 under the command of Captain George Collier to serve as the guardship at Plymouth, which role she undertook from February 1764.

[2] The conversion was completed at Chatham Dockyard and Edgar was sailed to Sheerness on 8 June, from where she was sunk in place in August.