{{Use dmy dates|date=April 2022}} Nine ships and a naval base of the Royal Navy have been named '''HMS ''Neptune''''' after the Roman god of the ocean:

* {{HMS|Neptune|1683}} was a 90-gun second rate launched in 1683. She was rebuilt in 1710 and 1730 before being renamed HMS ''Torbay'' in her new incarnation as a third rate in 1750. She was sold in 1784. * {{HMS|Neptune|1757}} was a 90-gun second rate launched in 1757. She was hulked in 1784 and broken up in 1816. * {{HMS|Neptune|1797}} was a 98-gun second rate launched in 1797. She fought at the battle of Trafalgar and was broken up in 1818. * HMS ''Neptune'' was to have been a 120-gun first rate. She was renamed {{HMS|Royal George|1827}} in 1822, before being launched in 1827. ''Royal George'' was sold in 1875. * {{HMS|Neptune|1832}} was a 120-gun first rate launched in 1832. She was rebuilt as a 72-gun third rate with screw propulsion in 1859 and was sold in 1875. * {{HMS|Neptune|1863}} was a coastguard cutter built in 1863 and sold in 1905. * {{HMS|Neptune|1874}} was an ironclad warship launched in 1874 as ''Independência'', intended for the Brazilian Navy. Acquired by the Royal Navy in 1878, she was sold in 1903. * {{HMS|Neptune|1909}} was an early dreadnought launched in 1909 and scrapped in 1922. * {{HMS|Neptune|20}} was a {{sclass|Leander|cruiser (1931)|0}} light cruiser launched in 1933 and sunk in a minefield off Tripoli in 1941. * HMS ''Neptune'' was a projected {{sclass|Neptune|cruiser}} in the 1945 Naval Estimates, but the plans were cancelled in March 1946 and she was never ordered. *HMS ''Neptune'' (shore establishment) is the name given to the shore establishment at HMNB Clyde. ==Battle honours== * Barfleur, 1692 * Quebec, 1759 * Trafalgar, 1805 * Martinique, 1809 * Baltic, 1854 * Jutland, 1916 * Atlantic, 1939 * Calabria, 1940 * Mediterranean, 1940 * ''Bismarck'', 1941 * Malta Convoys, 1941 ==See also== * {{ship|HSwMS|Neptun}}, two submarines of the Swedish Navy

{{Ship index}} {{Italic title prefixed|3}}

{{DEFAULTSORT:Neptune, Hms}} Category:Royal Navy ship names