William Norton, 2nd Baron Grantley

William Norton (19 February 1742 – 12 November 1822) was a British MP and peer. His father Fletcher Norton, 1st Baron Grantley was created a peer on 9 April 1782, from which time William Norton was styled 'the Honourable'. He became the 2nd Lord Grantley on 1 January 1789. 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 was the third Englishman to be elected and the second to actually sit in Parliament, for the Scottish constituency of Wigtown Burghs.