HMS Northumberland

Eight ships of the Royal Navy have borne the name HMS Northumberland after the English county of Northumberland, or the Dukedom of Northumberland. Another was planned but later cancelled:

• HMS Northumberland (1679) was a 70-gun third rate launched in 1679. She was rebuilt in 1701 and was wrecked in the Great Storm of 1703.
• HMS Northumberland was a 70-gun third rate launched in 1705. She was rebuilt from 1719 to 1721, and again from 1741 to 1743 (the last time as a 64-gun ship), and was captured by the French Navy off Ushant in 1744.
• HMS Northumberland (1750) was a 70-gun third rate launched in 1750. She was converted into a storeship in 1777 and renamed HMS Leviathan. She foundered in 1780.
• HMS Northumberland (1794) was a 78-gun third rate captured from the French Navy at the Battle of the Glorious First of June in 1794 and broken up in 1795.
• HMS Northumberland (1798) was a 74-gun third rate launched in 1798, notable as the ship that carried Napoleon to his final exile on the island of Saint Helena in 1815. She was converted to a hulk in 1827 and broken up in 1850.
• HMS Northumberland (1866) was a Minotaur-class ironclad battleship launched in 1866. She became a depot ship in 1898 and was renamed HMS Acheron on becoming a training ship in 1904. She was converted to a hulk and renamed C8 in 1909, and renamed C68 in 1926. She was sold 1927 and later resold as the hulk Stedmound.
• HMS Northumberland was to have been a County-class heavy cruiser ordered in 1929 but cancelled in 1930.
• HMS Northumberland is a Type 23 frigate launched in 1992 and currently in service.

HMCS Northumberland was to have been a River-class frigate of the Royal Canadian Navy, but the order was cancelled in 1943.