William Findlay Maclean (August 10, 1854 – December 7, 1929) was a Canadian politician.

Born in Ancaster, Wentworth County, Canada West, the son of John Maclean and Isabella Findlay, he was educated at the Hamilton Public School and the University of Toronto.

He ran unsuccessfully in North Wentworth for the Legislative Assembly of Ontario in the general elections of 1890, and in York East for the House of Commons of Canada in the general elections of 1891.

He was first elected to the House of Commons in an 1892 by-election for the riding of York East after the death of the sitting MP and former Prime Minister, Alexander Mackenzie.

[3] There is a William Findlay Maclean fonds at Library and Archives Canada.