William Morrison, 1st Viscount Dunrossil

William Shepherd Morrison, 1st Viscount Dunrossil (10 August 1893 – 3 February 1961), 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. Morrison was the son of a Scottish farmer, born at Torinturk farm by Loch Nell near Oban, Argyll.

He attended George Watson's College and then went on to the University of Edinburgh; his studies were interrupted by World War I, where he served with the Royal Field Artillery and won the Military Cross. Training as a lawyer, Morrison was called to the bar in 1923 and began working as a private secretary to Sir Thomas Inskip, the Solicitor-General.

After several previous attempts, he was elected to the House of Commons in 1929, representing a constituency in Gloucestershire for the Conservative Party. In 1936, after several years as a junior minister, Morrison was made Minister of Agriculture and Fisheries by Stanley Baldwin. He also served as a minister under Neville Chamberlain and Winston Churchill, including as Minister of Food (1939–1940), Postmaster General (1940–1943), and Minister of Town and Country Planning (1943–1945).