Illawarra was an electoral district of the Legislative Assembly in the Australian state of New South Wales. It was located in the Illawarra area and originally created in 1859, replacing East Camden. It was replaced by Wollongong in 1904 and recreated in 1927. In 1968, it was abolished and partly replaced by Kembla. In 1971, Kembla was abolished and Illawarra was recreated. In 2007, it was abolished and replaced by Shellharbour.