Sydney Kingsford Smith Airport — colloquially Mascot Airport, Kingsford Smith Airport, or Sydney Airport — is an international airport in Sydney, New South Wales, Australia, located 8 km (5 mi) south of the Sydney central business district, in the suburb of Mascot. The airport is owned by Sydney Airport Holdings. It is the primary airport serving Sydney and is a primary hub for Qantas, as well as a secondary hub for Virgin Australia and Jetstar, and a focus city for Air New Zealand. Situated next to Botany Bay, the airport has three runways. Sydney Kingsford Int'l Airport covers 907 hectares of land.

Sir Charles Edward Kingsford Smith, nicknamed Smithy, was an Australian aviation pioneer. He piloted the first transpacific flight and the first flight between Australia and New Zealand.