RAAF Base Richmond is a Royal Australian Air Force military air base located within the City of Hawkesbury, approximately 50 kilometres North-West of the Sydney Central Business District in New South Wales, Australia. Situated between the towns of Windsor and Richmond, the base is the oldest base in New South Wales and the second oldest in Australia.: ii–iii  The base is home to the transport headquarters RAAF Air Lift Group, and its major operational formations, Nos. 84 and 86 Wings.