12th Battalion may refer to:
12th Battalion (Australia), a unit of the Australian Army 12th Battalion, Canadian Expeditionary Forces, a unit of the Canadian Army 12 (Vancouver) Service Battalion, a unit of the Canadian Army 12th Philippine Scout Battalion, a unit of the Philippine Army The United Kingdom Army unit 12th Battalion, Durham Light Infantry
See also
Twelfth Army (disambiguation) XII Corps (disambiguation) 12th Division (disambiguation) 12th Brigade (disambiguation) 12th Regiment (disambiguation) 12th Group (disambiguation) 12 Squadron (disambiguation)