18th Battalion may refer to:
*
18th Battalion (Australia), a unit of the Australian Army 1915–1944
*
2/18th Australian Infantry Battalion, a unit of the Australian Army 1940–1945
*
18th Battalion (Western Ontario), CEF, a unit of the Canadian Expeditionary Force 1914–1917
*
18th Logistics Battalion, a unit of the Belgian Army
*
18th Battalion (New Zealand), a unit of the New Zealand Army 1939–1945
See also
*
XVIII Corps (disambiguation) 18 Corps, 18th Corps, Eighteenth Corps, or XVIII Corps may refer to:
* 18th Army Corps (France)
* XVIII Army Corps (Wehrmacht), a unit of the German Army
* XVIII Corps (German Empire)
* XVIII Reserve Corps (German Empire)
* XVIII Corps (Ottoman ...
*
18th Division (disambiguation)
*
18th Brigade (disambiguation)
*
18th Regiment (disambiguation)
*
18 Squadron (disambiguation) 18 Squadron or 18th Squadron may refer to:
* No. 18 (Netherlands East Indies) Squadron RAAF, a unit of the Royal Australian Air Force
* No. 18 Squadron IAF, a unit of the Indian Air Force
* No. 18 Squadron RAF, a unit of the United Kingdom Royal ...
{{mil-unit-dis