Francis Thornhill Baring, 1st Baron Northbrook (1796-1866) was a British Whig politician who served in the governments of Lord Melbourne and Lord John Russell. Educated at Eton and Christ Church, Oxford. Called to the bar, Lincoln's Inn, 1823. Member of Parliament for Portsmouth , 1826-1865. A Lord of the Treasury, 1830-1834, and a Secretary of the Treasury, June-November 1834 and 1835-1839. He was created Baron Northbrook in 1866. He was a member of the famous Baring banking family.

|- style="text-align: center;" | width="30%" |Preceded by:
The Earl of Auckland | width="40%" style="text-align: center;" |First Lord of the Admiralty
1849–1852 | width="30%" |Succeeded by:
The Duke of Northumberland