Fairbairn, formerly RAAF Base Fairbairn, is a former Royal Australian Air Force (RAAF) military air base, located in Australia's national capital, Canberra, Australian Capital Territory. Over the years the name of the establishment, and the use of the land, has changed. The base was in use by the RAAF between 1940 and 2007, when the land occupied north and east of the Canberra Airport runways was sold to Capital Airport Pty Limited for the purposes of advancing civil aviation and the development of a business park.