Wallace Reginald McDonald (18 July 1876 – 2 May 1946) was a Liberal party member of the House of Commons of Canada.
He became mayor of Chapeau, Quebec from 1915 to 1923 and served as warden of Pontiac County from 1918 to 1921.
McDonald resigned his provincial seat on 25 September 1935 to seek national office for the federal Liberal party.
After a year of ill health, McDonald died at his home in Chapeau on 2 May 1946 before completing his term in the 20th Canadian Parliament.
This article about a Quebec Member of Parliament from the Liberal Party of Canada is a stub.