The 2/2nd Machine Gun Battalion was an infantry support unit of the all-volunteer Second Australian Imperial Force that was raised for service overseas during the Second World War. Formed in mid-1940 in Sydney, from personnel drawn from the states of Queensland and New South Wales, the battalion was allocated to the Australian 9th Division. After completing training in Australia, the battalion operated in the Middle East between early 1941 and early 1943, seeing action against German and Italian forces at the First and Second Battles of El Alamein, and undertaking garrison duties in Syria as part of the Allied garrison that was established there after the Syria–Lebanon campaign.