William Leveson-Gower (16 March 1697 – 13 December 1756) was a British Tory politician who sat in the House of Commons for 36 years from 1720 to 1756.
He consistently voted against the Government until in 1744, he went over to the Administration with his brother Lord Gower.
In 1751 he went into opposition with the Duke of Bedford, and severed his political connection with his brother.
In December 1751, the Princess Emily wanted him to be made treasurer to the Prince of Wales and auditor to herself, but Pelham insisted that he ask for Lord Gower's interest, which he refused to do.
He voted in January 1752 with the Administration on the Saxon subsidy treaty, which the Duke of Bedford had opposed in the House of Lords, but subsequently reverted to opposition.