William Pate Mulock, PC (July 8, 1897 – August 25, 1954) was a Canadian politician.

[1][2] Mulock was educated at Upper Canada College and the University of Toronto, where he was a member of Kappa Alpha Society.

Following service in the Canadian Expeditionary Force in Siberia, he returned and attended Osgoode Hall Law School.

Mulock first ran unsuccessfully for the House of Commons of Canada in the riding of York North in the 1930 federal election.

Upon the death of the founding publisher of the Toronto Star in 1948, Mulock inherited some of the estate of the late Joseph E. Atkinson.