William Shepherd Morrison, 1st Viscount Dunrossil,, was a British politician. He was a long-serving cabinet minister before serving as Speaker of the House of Commons from 1951 to 1959. He was then appointed as the 14th Governor-General of Australia, in office from 1960 until his death in 1961.

The Speaker of the House of Commons is the presiding officer of the House of Commons, the lower house and primary chamber of the Parliament of the United Kingdom. The current speaker, Sir Lindsay Hoyle, was elected Speaker on 4 November 2019, following the retirement of John Bercow. Hoyle began his first full parliamentary term in the role on 17 December 2019, having been unanimously re-elected after the 2019 general election.