The 15th Battalion (48th Highlanders of Canada), CEF was an infantry battalion of the Canadian Expeditionary Force during the Great War. The 15th Battalion was authorized on 1 September 1914, embarked for Britain on 26 September 1914 and arrived in France on 15 February 1915. The battalion fought as part of the 3rd Canadian Brigade, 1st Canadian Division in France and Flanders throughout the war. The battalion was disbanded on 30 August 1920.