Sir William Stowell Haldane WS (19 August 1864 – 7 November 1951) was a Scottish civil servant who was Crown Agent for Scotland.
[2] His grandfather was the evangelist James Alexander Haldane.
His mother was the daughter of Richard Burdon-Sanderson and the granddaughter of Sir Thomas Burdon.
His maternal uncle was the physiologist John Scott Burdon-Sanderson.
[1] He married Margaret Edith Stuart Nelson (died 1943).