The 2/25th Battalion was an infantry battalion of the Australian Army which served during the Second World War. Raised in 1940, from volunteers drawn primarily from the state of Queensland, after completing its training the battalion undertook garrison duties in Darwin before deploying to the Middle East in mid-1941, as part of the 24th Brigade. There, it took part in more garrison duties in the Western Desert and in Palestine before it was reassigned from the 9th Division to the 7th Division and subsequently committed to the Syria–Lebanon campaign against the Vichy French. In early 1942, the 2/25th was returned to Australia to fight against the Japanese. Following this it took part in the fighting in New Guinea, undertaking two deployments there, firstly in 1942–1943 during which it took part the fighting along the Kokoda Track and around Buna–Gona, and then again in 1943–1944 when it helped to secure Lae before advancing into Finisterre Ranges. The battalion's final involvement in the war came in mid-1945, when it took part in the Borneo campaign, landing at Balikpapan. The battalion was disbanded in early 1946.