Bayside Council is a local government area in Sydney, New South Wales, Australia. It is located around part of Botany Bay, 7 kilometres (4.3 mi) to 12 kilometres (7.5 mi) south of the Sydney CBD. It includes suburbs of Southern Sydney as well as a small portion in the Eastern suburbs, south-east of the Sydney CBD. It comprises an area of 50 square kilometres (19 sq mi) and as at the 2016 census had a population of 156,058.

Southern Sydney is the southern metropolitan area of Greater Sydney, in the state of New South Wales, Australia.