1st Canadian Infantry Battalion

1st Canadian Infantry Battalion may refer to:

Unit of the First World War:
 * 1st Battalion, CEF

Units of the Canadian Army Pacific Force in 1945:
 * 1st Canadian Infantry Battalion (The Royal Canadian Regiment), 1st Canadian Infantry Regiment
 * 1st Canadian Infantry Battalion (Princess Patricia's Canadian Light Infantry), 2nd Canadian Infantry Regiment
 * 1st Canadian Infantry Battalion (Royal 22e Régiment), 3rd Canadian Infantry Regiment

Unit of the Korean War:


 * 1st Canadian Infantry Battalion, created in 1951 and in 1953 became 3rd Battalion, The Canadian Guards