Sir William Whyte (September 15, 1843 – April 14, 1914) was a Canadian railway executive.

Born in Charlestown, Scotland, the son of William Whyte and Christina Methven, Whyte attended public school in Charlestown before becoming a junior clerk in the office of the factor of Lord Elgin's estate.

In 1862, he became a station agent on the West of Fife Railway until he emigrated to Canada in 1863.

He was then made general superintendent of that division, which included all lines west of Smith Falls, Ontario, and in May 1885, the eastern division, extending from Smith Falls to Quebec, was added to his jurisdiction.

In 1886, he was made general superintendent of the western division, with headquarters at Winnipeg, and in 1896 was advanced to the position of general manager of all lines and branches from Lake Superior to the Pacific coast.