William George Clark (October 1, 1865 – January 18, 1948) was a merchant and political figure in New Brunswick, Canada.
He represented York—Sunbury in the House of Commons of Canada from 1935 to 1940 as a Liberal member.
Clark was the 19th Lieutenant Governor of New Brunswick from 1940 to 1945.
Father of historian Esther Clark Wright.
This article about a mayor in New Brunswick is a stub.