1. Christopher Langan
Considered by many to be the smartest person alive today, Christopher Langan is an autodidact (self-taught) who had a difficult upbringing and bulked up in order to fight off bullies as well as a temperamental stepfather. His IQ is reported to be between 195 and 210.
2. Terence Tao
Terence Tao is a Chinese-American mathematician who has been estimated to have an IQ as high as 230. Tao scored a 760 on the old math SAT when he was 9 years old.
3. Marilyn vos Savant
While her score has been disputed, vos Savant is widely considered to have the highest IQ on living record at a supposed 228. She is well known for her “Ask Marilyn” column in Parade. Her husband is Dr Robert Jarvik, designer of the first successfully-implanted artificial heart.
4. Chris Hirata
Christopher Hirata is a former child prodigy with a reported IQ of 225. A physicist, Hirata has worked for NASA and later worked as a physics and astronomy professor.
5. Kim Ung-yong
Kim Ung-yong is a Korean civil engineer and former Guinness World Record holder for highest IQ (about 210). He has had an IQ score of over 200 since he was 4 years old.
6. Neil deGrasse Tyson
While his IQ is unknown, this charismatic astrophysicist and cosmologist is one of the brightest people on the planet. He is an advocate for expanding NASA and also for social justice.
7. Evangelos Katsioulis
Katsioulis is a Greek doctor known for his high IQ score of between 198 and 205. He is the founder of the World Intelligence Network, an organization for high IQ societies.
8. Garry Kasparov
Kasparov is a former World Chess Champion and political activist, working as an opposition leader to Vladimir Putin. Many consider him to be the greatest chess player of all time. With a reported IQ of 190, he sits on the Human Rights Foundation.
9. Saul Kripke
Kripke is a Professor Emeritus at Princeton University in the field of philosophy. He is considered one of the most influential people in the world of logic and philosophy today.
10. Ruth Lawrence
Though her IQ is unknown, Ruth Lawrence was a child prodigy who graduated from Oxford University at the age of 13. She is now a mathematics professor at the Einstein Institute of Mathematics in Jerusalem.