Jack Nicholson has been named the wealthiest Oscar winner - with a net worth of 390 million dollars (£234 million).
Barbra Streisand is the richest actress on the list, tying in third place with Robert De Niro. They both have an estimated wealth of 310 million dollars (£186 million).
Tom Hanks is named as the second richest Oscar winner in the list, researched and compiled by high-net-worth intelligence firm Wealth-X.
Tom, who has won two Best Actor Academy Awards, for Philadelphia and Forrest Gump, is said to be worth 350 million dollars (£210 million).
Jack Nicholson has three Oscars under his belt, two Best Actor gongs for One Flew Over The Cuckoo's Nest and As Good As It Gets and a Best Supporting Actor award for his performance in Terms Of Endearment.
Robert De Niro has two Academy Awards to his name - Best Actor for Raging Bull and Best Supporting Actor for The Godfather: Part II.
All the other stars on the list have just one Oscar each, although Sandra Bullock, who shares 10th place with Robin Williams, is tipped to win a second Best Actress gong this year for her role in 3D space epic Gravity. She and Robin are both estimated to be worth 150 million dollars (£90 million).
Making up the rest of the top 10 are Sir Sean Connery in fifth place, followed by George Clooney, Michael Douglas and Sir Anthony Hopkins consecutively.
Wealth-X's list is based on its proprietary valuation model, which it used to assess all asset holdings, including privately and publicly held businesses and investible assets.