HMS Nemesis was a 28-gun Enterprise-class sixth-rate frigate of the Royal Navy. The French captured her in 1795 at Smyrna, but in 1796 a squadron led by Barfleur brought her out of the neutral port of Tunis. Throughout her career she served under a number of commanders who would go on to have distinguished careers. She was converted to a troopship in 1812 and was sold in 1814.

The Enterprise-class frigates were the final class of 28-gun sailing frigates of the sixth-rate to be produced for the Royal Navy. These twenty-seven vessels were designed in 1770 by John Williams. A first batch of five ships were ordered as part of the programme sparked by the Falklands Islands emergency. Two ships were built by contract in private shipyards, while three others were constructed in the Royal Dockyards using foreign oak.