John Wesley Brien

Infobox MP
honorific-prefix =
name = John Wesley Brien
honorific-suffix =


constituency_MP = Essex South
parliament = Canadian
majority =
predecessor = Alfred Henry Clarke
successor = George Perry Graham
term_start = 1917
term_end = 1921
birth_date = November 24, 1864
birth_place = Victoria County, Canada West
death_date = January 11, 1949
death_place =
nationality = Canadian
spouse =
party = Unionist Party
relations =
children =
residence =
alma_mater =
occupation = physician
profession =
religion =


website =CanParlbio|ID=dc98e498-0b76-4a0b-ab68-ad6faa92d99f
footnotes =

John Wesley Brien (born November 24, 1864 in Victoria County, Canada West-died January 11, 1949) was a Canadian politician and physician. He was elected to the Canadian House of Commons in the 1917 election as a Member of the Unionist Party to represent the riding of Essex South. Prior to his federal political career, he had just served a year in the Canadian Expeditionary Force as a medical officer before being forced to return home due to injury. He also served as a captain in the British Canadian Recruiting Mission in Chicago, Illinois, United States of America.His cousin, James Brien, was also a Member of the Canadian House of Commons.