The 2/22nd Battalion was an infantry battalion of the Australian Army. Raised as part of the Second Australian Imperial Force for service during World War II, the battalion formed part of the 23rd Brigade, attached to the 8th Division. It was captured by the Japanese during the Battle of Rabaul in 1942. After being captured, the battalion was not re-raised and a large number of its personnel died in captivity; those that did not were returned to Australia at the end of the war in 1945.