Bankstown is a suburb of Sydney, in the state of New South Wales, Australia. It is located 19 kilometres south-west of the Sydney central business district and is part of the Canterbury-Bankstown region. Bankstown is the administrative centre of the City of Canterbury-Bankstown, having previously been the administrative centre of the City of Bankstown prior to the 2016. It is the most populous suburb within the City of Canterbury-Bankstown.

In the 2021 census, Bankstown recorded a population of 34,933 people, of which 50.4% were female and 49.6% were male. The median age of the Bankstown population was 34 years, 4 years below the national median of 38.

Bankstown railway station is on the Bankstown line of the Sydney Trains network. The rail line was built to Belmore in 1895 and then extended to Bankstown in 1909. The line was electrified in 1926. In 1928, the line was extended westwards from Bankstown to join the Main Suburban railway at Lidcombe and the Main South line to Liverpool. Bankstown is a major bus interchange for a number of bus services.