5. Greg Norman: $300 million
Greg Norman is one of the best golfers in the history of Australia, with over 85 professional tournament victories and a net worth estimated at $300 million.
Norman finished in the top 10 of 30 major tournaments in his career, and he was the runner-up eight of those times. He won 20 PGA Tour tournaments and was inducted into the World Golf Hall of Fame in 2001.