Richest Olympians (2026): Michael Phelps at $100M

Among athletes who made their name at the Games, Michael Phelps is the richest Olympian, worth an estimated $100 million. The most decorated Olympian ever, with 28 medals and 23 golds, turned that dominance into decades of blue-chip endorsements and a swimwear and pool-technology business that kept earning long after his final race.

Technically yes, and it changes the answer. Michael Jordan (Dream Team, 1984 and 1992) is worth billions, and Roger Federer, an Olympic doubles gold medalist, is also a billionaire. Most lists treat them as basketball and tennis figures rather than career Olympians, which is why Michael Phelps tops rankings of athletes defined by the Games themselves.

Yes, but usually through inheritance rather than sport. Danish dressage rider Anna Kasprzak is often cited as the wealthiest Olympian at close to $1 billion, a fortune tied to the ECCO footwear company her family founded, not to prize money. Among those who built their wealth from competing and endorsements, the figures top out around Phelps at $100 million.

Each figure is an estimate compiled from public sources, reported endorsement and appearance income, business holdings and credible media reporting, and is updated as we research each profile.