Who has the Highest IQ in the World? 

Christopher Michael Langan (IQ Score: 190-210) -  Christopher Langan, born in San Francisco, California, began speaking at the age of 6 months and taught himself to read at just 3. 

Kim Ung-Yong (IQ Score: 210) -  Kim Ung-Yong was born in Korea in 1963 and began speaking at the age of six months. 

Leonardo Da Vinci (IQ Score: 220) -  It’s not surprising to learn that da Vinci also had a very high IQ; it’s believed that he might have had an IQ score as high as 220. 

K. Visalini (IQ Score: 225) -  Born and raised in a humble family, she garnered international attention due to her exceptional speed of learning new ideas and concepts. 

Christopher Hirata (IQ Score: 225) -  A former child prodigy, Hirata became the youngest American to win a gold medal at the 1996 International Physics Olympics. 

Marilyn Vos Savant (IQ Score: 228) -  Marilyn was born in 1946 in Missouri, USA. Believing that her premarital surname should be kept, she kept her mother’s surname, Marina Vos Savant. 

Terence Tao (IQ Score: 225-230) -  Born into a Chinese family in 1975, Terence showed an extraordinary talent for mathematics at a very early age. 

William James Sidis (IQ Score: 250-300) -  Born in 1898 in New York City and raised in an intellectual family, he was gifted from the very beginning. 

Ainan Celeste Cawley (IQ Score: 250) -  Ainan Celeste Cawley was born in 1999. He has an IQ of 250! At 7, Ainan became the youngest person in the world to pass the Chemistry-O level. 

Maren Laibow-Koser (IQ Score: 268) -  Marnen Laibow-Koser is an American musical prodigy who is reported to have an IQ score of 268. 

Adragon De Mello (IQ Score: 400) -  Adragon De Mello came to the limelight in 1988 when he became the first person in American history to become a college graduate at 11. 

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