Six warships of the Royal Navy have been named HMS Northumberland:

1. The first, a 70-gun third-rate launched in 1679, fought in the War of the Grand Alliance. She was lost in a storm in 1703.
2. The second, a 70-gun third-rate launched in 1705, surrendered in 1744 to a French fleet during the War of the Austrian Succession.
3. The third, a 70-gun third-rate launched in 1750, fought in the Seven Years' War. In 1777 she was converted to a storeship and renamed Leviathan.
4. The fourth, a 74-gun third-rate launched in 1798, fought in the Napoleonic Wars, including the Battle of Groix Island. She gained fame by conveying Napoleon from Plymouth to his exile in Saint Helena. She was decommissioned in 1850.
5. The fifth, a Warrior class armoured frigate, was launched in 1868 and decommissioned in 1909.
6. The sixth, a type 23 frigate, was launched in 1992.

A French ship also called Northumberland fought in the Battle of the Glorious First of June.