Campbelltown is a suburb in south-western Sydney, in the state of New South Wales, Australia. Campbelltown is located 51 kilometres south-west of the Sydney central business district and is the administrative centre for the local government area of the City of Campbelltown.
The old town centre, as laid down by Macquarie, is still the main commercial area and includes the Queen Street shopping strip, Campbelltown Mall, Campbelltown Railway Station and bus interchange, the council chambers and a number of historic buildings. The main residential area is to the south and east of the town centre. On the northwestern side of the railway line is an industrial area.