Carss Park is a suburb in southern Sydney, in the state of New South Wales, Australia 17 kilometres south of the Sydney central business district in the local government area of the Georges River Council. Carss Park is part of the St George area.

According to the 2016 census of Population, there were 1,252 people usually resident in Carss Park. 69.5% of people were born in Australia. 61.2% of people spoke only English at home. Other languages spoken at home included Greek at 12.3%. The most common responses for religious affiliation were Catholic 23.9%, Orthodox 19.9%, No Religion 16.5% and Anglican 14.6%.