The Illawarra Open was a professional golf tournament played in the Illawarra area of New South Wales, Australia. It was played between 1978 and 1981. 1978 and 1979 events had prize money of A$20,000. The 1981 event was played over 36 holes with reduced prize money of A$10,000 and was not a PGA Tour of Australia Order of Merit event. The 1982 event had prize money of A$25,000. The 1978 tournament was planned as a 72-hole event. 18 holes were played on the Thursday and Friday but heavy rain at the weekend caused the tournament to be reduced to 36 holes.