Alexander Wilson (7 June 1889 – 26 January 1954) was an Australian wheat farmer and federal politician who played a key role in the downfall of the Fadden government in 1941.

Wilson was a prominent leader of Victorian wheat growers who successfully stood as a candidate at the 1937 Australian election for the House of Representatives seat of Wimmera against the sitting Country Party member Hugh McClelland.

Governor-General Lord Gowrie was reluctant to call an election for a Parliament barely a year old, especially given the international situation.

He summoned Coles and Wilson and made them promise that if he named Labor leader John Curtin prime minister, they would support him for the remainder of the term to end the instability in government.

Wilson remained in parliament until his retirement on 31 December 1945 to become the Administrator of Norfolk Island, a position he held until 1952.