William Shepherd Morrison, 1st Viscount Dunrossil, GCMG, MC, PC, QC (10 August 1893 – 3 February 1961), was a British politician.

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.

He joined the British Army as an officer in the First World War and served with an artillery regiment in France, where he won the Military Cross.

Morrison was called to the English bar at the Inner Temple in 1923 and worked as private secretary to Sir Thomas Inskip, the Solicitor-General.

Morrison had a long ministerial career under four Prime Ministers (Ramsay MacDonald, Stanley Baldwin, Neville Chamberlain and Winston Churchill).

He was: Morrison was referred to in the book "Guilty Men" by Michael Foot, Frank Owen and Peter Howard (writing under the pseudonym 'Cato'), published in 1940 as an attack on public figures for their failure to re-arm and their appeasement of Nazi Germany.

[2] However, as noted in the diaries of Chips Channon, he was part of the Insurgents, the faction of the Conservative party that worked in secret against appeasement, to oust Chamberlain and replace him with Churchill ahead of the war.

[5] Given his health, it surprised many when it was announced shortly thereafter that he had been chosen to succeed Sir William Slim as Governor-General of Australia, leading to 155 MPs voting against the customary bill granting him the traditional pension of £4,000 per annum.