The 37th Battalion was an infantry battalion of the Australian Army. It was originally raised in 1916 for service during the World War I and took part in the fighting in the trenches of the Western Front in France and Belgium and was disbanded in 1918. In 1921, the battalion was re-raised as part of the part-time Citizens Forces, although it was later amalgamated with the 52nd Battalion in 1930 due to manpower shortages. In 1937 the battalion returned to the order of battle as the Australian military was expanded due to concerns of a future war in Europe. Following the outbreak of World War II, the 37th Battalion served in a garrison role until 1942 when it was once again amalgamated with the 52nd Battalion.