The 2nd New Guinea Infantry Battalion (2 NGIB) was a battalion of the Australian Army during World War II. One of four infantry battalions raised in New Guinea, 2 NGIB was formed in September 1944. Formed late in the war, the battalion played only a minor role in the Allied campaign in New Guinea, supporting the 6th Division during the final stages of the Aitape–Wewak campaign. In 1945, it became part of the Pacific Islands Regiment, but was disbanded in June 1946.