27th Battalion

27th Battalion may refer to:


 * 27th Battalion (Australia), a unit of the Australian Army Flag of Australia.svg
 * 2/27th Battalion (Australia), a unit of the Australian Army Flag of Australia.svg
 * 27th (City of Winnipeg) Battalion, CEF, a unit of the Canadian Army Canadian Red Ensign 1868-1921.svg
 * 27th Jäger Battalion (Finland), a unit of the German Army 1915–1918 consisted mainly of volunteers from Finland Flag of the German Empire.svg
 * 27ème bataillon de chasseurs alpins, a unit of the French Army Flag of France.svg
 * 27 Infantry Battalion (Ireland), a unit of the Irish Army Flag of Ireland.svg
 * 27th Machine-Gun Battalion (New Zealand), a unit of the 2nd New Zealand Division during the Second World War Flag of New Zealand.svg
 * 27th Battalion Virginia Partisan Rangers, a cavalry unit in the Confederate States Army during the American Civil War Second national flag of the Confederate States of America.svg
 * 27th Engineer Battalion (United States), a unit of the United States Army Flag of the United States.svg