Sir William Young Darling CBE FRSE LLD MC (8 May 1885 – 4 February 1962) was the Unionist Member of Parliament in the British House of Commons for the Edinburgh South constituency from 1945 to 1957.

The University of Edinburgh later awarded him an honorary Doctor of Laws (LLD).

During this period, together with Hugh Pollard (1888–1966), he jointly printed the Weekly Summary: a synopsis of the war from a British perspective.

He was Lord Provost of Edinburgh from 1941 to 1944; National Government Candidate for West Lothian, 1937; and chairman, Scottish Council on Industry, from 1942 to 1946.

He was the great uncle of Alistair Darling,[4] an Edinburgh MP from 1987 to 2015 who held various ministerial and Cabinet posts in the Labour government from 1997 to 2010.