Bill Lyndon (born 30 January 1964) is a former Australian strongman competitor. Lyndon is a 5 time winner of Australia's Strongest Man, and a 4 time entrant to the World's Strongest Man competition.
Bill Lyndon was born in Melbourne, Australia. He was one of seven children having five sisters and a brother. He was educated at high school in Melbourne and went on to business college, afterwards becoming a structural engineer. A keen sportsman, he played a variety of sports including Australian Rules Football, American Football, Rugby League, cycling and from the age of 23, powerlifting. His rugby league led him to spend two seasons in Perth and as a powerlifter he won four national powerlifting titles.