Cartwright is a suburb in south-western Sydney, in the state of New South Wales, Australia 38 kilometres south-west of the Sydney central business district, in the local government area of the City of Liverpool.

According to the 2016 census, there were 2,370 residents in Cartwright. 51.1% of people were born in Australia. The most common other countries of birth were Vietnam 6.1%, Iraq 5.1%, New Zealand 2.9%, Lebanon 2.9% and Fiji 1.7%. In Cartwright 44.2% of people only spoke English at home. Other languages spoken at home included Arabic 14.0%, Vietnamese 9.5%, Samoan 4.1%, Spanish 2.3% and Hindi 2.3%. The most common responses for religion in Cartwright were Catholic 21.4%, Islam 14.5% and No Religion 13.8%.

It is served by bus services T80, along the dedicated bus T-Way, operated by Transit Systems as are routes 802 and 803. Transit Systems operates bus routes 853 and 854.