The 75th Battalion (Mississauga), CEF was an infantry battalion of the Canadian Expeditionary Force during the Great War. The 75th Battalion was authorized on 10 July 1915 and embarked for Great Britain on 29 March 1916. It disembarked in France on 12 August 1916, where it fought as part of the 11th Infantry Brigade, 4th Canadian Division in France and Flanders until the end of the war. The battalion was disbanded on 15 September 1920.