The 29th/46th Battalion was an infantry battalion of the Australian Army. It was formed in August 1942 by the amalgamation of two previously existing Militia battalions, the 29th and 46th, which were merged following a decision by the Australian government to release manpower from the military back into industry to meet the nation's increased production requirements. Initially the 29th/46th, serving as part of the 4th Brigade, undertook garrison duties in Australia, however, in 1943 the battalion was deployed to New Guinea where it garrisoned Milne Bay before subsequently taking part in the Huon Peninsula campaign in support of the 9th Division. In late 1944, after being deployed for over a year and a half, the battalion returned to Australia for a brief period of leave and reorganisation. In early 1945, however, they were again deployed overseas, this time to the island of New Britain where they undertook a campaign to contain the large Japanese garrison. Following the end of the war the battalion was disbanded in June 1946.