The 1st Mountain Battery was an Australian Army artillery battery formed in July 1942, that served during the Second World War, seeing action against the Japanese during the Battle of Buna–Gona and the Salamaua–Lae campaign in 1942–43. The unit was added to the 1st Parachute Battalion in August 1944 providing an organic indirect fire support, equipped with Short 25-pounder guns, but did not see further action in this role. The battery was disbanded in 1946.
