HMS Nereus

{{Use dmy dates|date=April 2022}}

{{Italic title prefixed|3}}

Three ships of the Royal Navy have borne the name HMS Nereus, after the Greek deity Nereus:{{cite book |last1=Colledge |first1=James Joseph |last2=Warlow |first2=Ben |title=Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy| publisher=Casemate |location=Havertown |year=2010 |isbn=978-1-93514-907-1 |page=241}}

• {{HMS|Nereus|1809}}, a 32-gun frigate that served between 1809 and 1817
• {{HMS|Nereus|1821}}, a 46-gun modified {{sclass|Leda|frigate|2}} that was never commissioned and served as a store ship until 1879
• {{HMS|Nereus|1916}}, an {{sclass2|Admiralty M|destroyer}} launched in 1916 and sold for breaking up in 1921