Montreal Concordia was a Canadian soccer team based in Montreal, Quebec. The club president in its known period of existence was real estate businessman Joe Slyomovics, a refugee from Czechoslovakia.
The club participated in the eastern Canada based National Soccer League in 1960, finishing third, and in 1961, finishing second. In July 1961 Concordia defeated Vancouver Firefighters in Montreal's Faillon Stadium 1-0 through a goal of their Brazilian centreforward Olivio Lacerda and thus winning the Canadian National Challenge Cup. Before this the club participated in the 1961 International Soccer League, a 3-1 win against French champions AS Monaco being the highlight there.