Img Cr. Daily Mail

10. Rick Rosner (IQ score: 190)

Img Cr. Wikipedia

9. Philip Emeagwali (IQ score: 190)

Img Cr. Iq-test.net

8. Garry Kasparov (IQ score: 190)

Img Cr. All That's Interesting

7.  Marilyn vos Savant (IQ score: 190)

Img Cr. Wikipedia

6. Christopher Michael Langan (IQ score: 190-210)

Img Cr. Geniuses.Club

5. Edith Stern (IQ score: 200+)

Img Cr. The Korea Herald

4. Kim Ung-Yong (IQ score: 210)

Img Cr. Dr Prem Jagyasi

3. Christopher Hirata (IQ score: 225)

Img Cr. Wikipedia

2. Terence Tao (IQ score: 225-230)

Img Cr. Wikipedia

1. William James Sidis (IQ score: 250-300)