Geoffrey Walter Edelsten (2 May 1943 – 11 June 2021) was an Australian medical businessman. He founded Allied Medical Group. He was born in Melbourne. His net worth was $63 million in 2012. In 1990, he went to jail for the assault a former patient. Edelsten was the first private owner of a major Australian football team, the Sydney Swans, which he bought in 1985.