Owen is worth £41m according to The Sunday Times Rich List, which will be published next Sunday. He has increased his bank balance by £4m in the past year and is ranked 12th in the country among the most wealthy people aged 30 and under.
Princes William and Harry have allegedly £35m each, and so have Manchester United's Wayne Rooney and his girlfriend Coleen McLoughlin.
Cristiano Ronaldo is a new entry in the 100 Young Rich at No 34. The Portuguese player is worth £15m.
Jenson Button, who has won only one F1 grand prix in his career and collected six points in the championship last season, is well ahead of Lewis Hamilton in the financial stakes. Hamilton, the new kid on the block who drives for McLaren, missed out on the world title by one point. He is worth £15m and is 34th.