William Norton, 2nd Baron Grantley

William Norton, 2nd Baron Grantley (19 February 1742 – 12 November 1822) was a British politician who sat in the House of Commons from 1768 to 1789 when he succeeded to the peerage as Baron Grantley.

Norton was the son of Fletcher Norton, 1st Baron Grantley, who was created a peer on 9 April 1782, from which time William Norton was styled 'the Honourable'. He was educated at St John's College, Cambridge.

Norton was Member of Parliament for Richmond 1768–1774, for Wigtown Burghs 1774–1775 (unseated on petition), Richmond 1775–1780, Guildford 1782–1784 and Surrey 1784–1789. He became the 2nd Lord Grantley on 1 January 1789.

He was the third Englishman to be elected and the second to actually sit in Parliament, for the Scottish constituency of Wigtown Burghs.