IQ—short for Intelligence Quotient—has long captured the imagination of scientists, educators, and curious minds alike. A high IQ often indicates exceptional cognitive abilities like problem-solving, analytical thinking, and reasoning skills. But have you ever wondered who holds the title for the highest IQ in the world?
We’ve got the answer—plus a look at the top 10 people with the highest recorded IQs, their scores, nationalities, and areas of expertise. These are the brilliant minds reshaping the boundaries of intelligence and knowledge.
🏆 Top 10 Highest IQs in the World (According to The Giga Society)
| Rank | Name | IQ Score | Nationality | Field(s) of Expertise |
|---|---|---|---|---|
| 1 | YoungHoon Kim | 276 | South Korean | Psychology, Neuroscience, Linguistics |
| 2 | Terence Tao | 230 | Australian-American | Mathematics |
| 3 | Marilyn vos Savant | 228 | American | Logic, Philosophy, Authorship |
| 4 | Christopher Hirata | 225 | Japanese-American | Astrophysics |
| 5 | Sho Yano | 200 | American | Genetics, Molecular Biology |
| 6 | Evangelos Katsioulis | 198 | Greek | Medicine, Research, Philosophy |
| 7 | Christopher Harding | 197 | Australian | Philosophy, Intelligence Societies |
| 8 | Christopher Langan | 195 | American | Philosophy, Cognitive Science |
| 9 | Rick Rosner | 192 | American | Media, Television Writing |
| 10 | Garry Kasparov | 190 | Russian | Chess, Politics, Artificial Intelligence |
1. 🧠 YoungHoon Kim (IQ: 276)
Nationality: South Korean
Expertise: Psychology, Neuroscience, Linguistics
Currently holding the record for the highest IQ ever recorded, YoungHoon Kim is a true polymath. He serves as the President of the United Sigma Intelligence Association and advises several global intelligence organizations. His work spans across cognitive science, brain research, and linguistic theory.
2. 🧠 Terence Tao (IQ: 230)
Nationality: Australian-American
Expertise: Mathematics
Nicknamed the “Mozart of Math”, Terence Tao became a full professor at UCLA by age 24. A Fields Medalist, his work spans number theory, harmonic analysis, and differential equations. He’s considered one of the greatest living mathematicians.
3. 🧠 Marilyn vos Savant (IQ: 228)
Nationality: American
Expertise: Logic, Philosophy, Writing
The only woman on the list, Marilyn gained fame for her column “Ask Marilyn” in Parade Magazine, where she answered complex logic puzzles. She was once featured in the Guinness Book of World Records for having the highest recorded IQ.
4. 🧠 Christopher Hirata (IQ: 225)
Nationality: Japanese-American
Expertise: Astrophysics
A child prodigy, Hirata worked with NASA on Mars missions by age 14 and earned his PhD in physics from Caltech at just 22. His research includes dark matter and cosmology.
5. 🧠 Sho Yano (IQ: 200)
Nationality: American
Expertise: Genetics, Molecular Biology
Sho Yano began university at age 9 and became an MD by 21. A true child genius, his research contributes to genetic science and medical innovation.
6. 🧠 Evangelos Katsioulis (IQ: 198)
Nationality: Greek
Expertise: Psychiatry, Research, Philosophy
A psychiatrist with multiple advanced degrees, Evangelos is known for his leadership in international high-IQ societies and his work in education, medicine, and mental health.
7. 🧠 Christopher Harding (IQ: 197)
Nationality: Australian
Expertise: Philosophy, High-IQ Networks
Founder of the International Society for Philosophical Enquiry (ISPE), Harding was once dubbed “The Smartest Man in the World” by Guinness World Records. He’s a driving force in the high-IQ community.
8. 🧠 Christopher Langan (IQ: 195)
Nationality: American
Expertise: Philosophy, Cognitive Science
Often referred to as the “Smartest Man in America,” Langan developed the Cognitive-Theoretic Model of the Universe (CTMU), a theory attempting to bridge science and metaphysics. Remarkably, he’s almost entirely self-taught.
9. 🧠 Rick Rosner (IQ: 192)
Nationality: American
Expertise: Television Writing, Media
Rick Rosner is known as much for his eccentric career as for his IQ. He’s worked as a TV writer, appeared on quiz shows, and held various offbeat jobs—all while being a high-IQ society member.
10. 🧠 Garry Kasparov (IQ: 190)
Nationality: Russian
Expertise: Chess, Politics, AI
A former World Chess Champion, Kasparov is also a political activist and writer. His matches against AI programs like IBM’s Deep Blue marked historic moments in the evolution of artificial intelligence.
💡 What This List Tells Us
This impressive lineup proves that high intelligence knows no borders—and no boundaries in application. From chessboards to laboratories, classrooms to cosmos, these individuals show that a high IQ can be a launchpad for incredible achievement in math, science, philosophy, medicine, and even entertainment.
Whether you’re inspired by their intellect, curiosity, or sheer dedication to learning, these minds serve as a reminder of the limitless potential of human intelligence.
📝 Fun Fact:
IQ scores above 140 are considered genius level. Everyone on this list is operating in the super-genius range—often exceeding the maximum range of standard IQ tests.
