William James Westwood (August 19, 1887—March 7, 1962) was a politician in Manitoba, Canada. He served in the Legislative Assembly of Manitoba from 1917 to 1920, and again from 1932 to 1936. Westwood was born in , Manitoba, the son of Fred T. Westwood and Sarah Jane Gregory, and was educated at Rapid City and Brandon Baptist College. He worked as a notary public and municipal clerk, and served as secretary of the Roblin Pool Elevator Association. He worked with the Union Bank of Canada in Roblin from December 1906 to November 1917. In 1912, Westwood married Carrie Marie Hartford. From 1920 to 1946, he was secretary-treasurer for the Rural Municipality of Shell River. Westwood was mayor of Roblin from 1944 to 1946. In 1945, he moved to Russell, where he purchased a hardware store which he o