William Sturges Bourne (7 November 1769 - 1 February 1845) was a British Tory politician.

The son of the Reverend John Sturges and Judith Sturgesnée Bourne, the young William Sturges was educated at Winchestser College and Christ Church, Oxford, and was calle to the bar at Lincoln's Inn in 1793. At Oxford he became good friends with George Canning, who helped him become elected to parliament for Hastings in 1798.

In 1803, Sturges inherited property from his uncle Francis Bourne, causing him to change his surname to Bourne. In Pitt's second government, Sturges Bourne became Secretary to the Treasury, and, after a period out of government during the Government of All the Talents , he became a Lord of the Treasury from 1807 to 1809, retiring along with his ally Canning from the government.

Sturges Bourne left parliament after the 1812 general election, but, due again to Canning's influence, became a Privy Councillor in 1814, and returned to parliament for Bandon Bridge in 1815. In 1814 he became a commissioner on the Board of Control , remaining in this office until 1822. He also served from 1818 to 1819 as Chairman of a Committee to reform the Poor Laws, which was successfully carried out as the Sturges Bourne Acts.

Although he retired from government in 1822 due to a large inheritance, he returned to government as Home Secretary when Canning became prime minister in April 1827. He only served briefly in this post, becoming instead First Commissioner of Woods and Forests when the Whig grandee Lord Lansdowne joined the ministry as Home Secretary a few months later. He was offered the Chancellorship of the Exchequer several times by Canning's successor Lord Goderich, but turned it down, leading Colonial Secretary William Huskisson to accuse him of sabotaging the ministry. Sturges Bourne retired from government with Wellington's accession as premier in February 1828.

Sturges Bourne supported Catholic emancipation, but opposed the Whig Reform Bill, and retired from parliament in 1831. In his later career, he served as a member of the Royal Commission on the Poor Laws.

|- style="text-align: center;" | width="30%" |Preceded by:
John Courtenay | width="40%" style="text-align: center;" |Fifth Lord of the Treasury
1807 | width="30%" |Succeeded by:
Richard Ryder

|- style="text-align: center;" | width="30%" |Preceded by:
Robert Peel | width="40%" style="text-align: center;" |Secretary of State for the Home Department
1827 | width="30%" |Succeeded by:
The Marquess of Lansdowne

|- style="text-align: center;" | width="30%" |Preceded by:
The Earl of Carlisle | width="40%" style="text-align: center;" |First Commissioner of Woods and Forests
1827–1828 | width="30%" |Succeeded by:
Charles Arbuthnot