People With the Highest IQ
What would it feel like to be one of the smartest people alive and work as a bouncer, or to tackle cosmic mysteries that usually require a university department while wrangling cattle in Montana? Individuals on this list achieved exceptional scores, but their lives are often far more interesting than the numbers.
IQ results get a lot of attention, but there is also a lot of nonsense floating around. Many online lists claim that celebrities have IQs of 160, 190, or even higher, but almost none of these statements are backed up by real, standardized tests. And lost in all that noise are a handful of scores that are real — and rarely get the attention they deserve.
So, let’s start by looking at people whose very high IQs we can actually prove, then move to historical estimates and internet fairy tales that spread online.
Verified & Documented High IQ Scores:
Terence Tao (IQ 225-230)
Australian-born Terence Tao didn't just show early talent; he was auditing university-level math classes by age nine. Most nine-year-olds are still negotiating with multiplication tables.
He earned his doctorate at twenty and became a full professor at UCLA at twenty-four, making him the youngest full professor in the university’s history.
Rather than burning out, Tao revolutionized fields like number theory and partial differential equations, earning the Fields Medal - the mathematical equivalent of a Nobel Prize - in 2006. He is widely nicknamed the "Mozart of Math" for a reason.
Marilyn vos Savant (IQ 228)
Marilyn vos Savant gained fame after being listed in the Guinness Book of World Records for one of the highest IQ scores, reportedly 228 on older Stanford-Binet tests.
She later became more famous for her 'Ask Marilyn' column in Parade magazine, where she solved logic puzzles and answered questions from readers. A key moment in her career happened in 1990, when she solved the Monty Hall puzzle. Thousands of readers wrote to tell her that she was wrong, including many people with doctoral degrees. Later, computer tests proved that she was right.
Fun fact: "vos Savant" is her actual family surname (from her mother's side) — people assume she invented it to sound clever.
Christopher Hirata (IQ 225)
Like many others on this list, Christopher Hirata showed exceptional intelligence as a child. He won a gold medal at the International Physics Olympiad when he was 13. By age 16, he was working with NASA on Mars-related projects.
Hirata’s interest in cosmology and dark energy led him to become an astrophysicist. He later became a professor and received several international awards for his work on early galaxy formation.
Christopher Langan (IQ 195-210)
Often called "the smartest man in America," the Montana-born Christopher Langan taught himself to read by age four and reportedly got a perfect score on the SAT. He has worked as a construction worker, cowboy, forest ranger, and bar bouncer, which is a striking contrast to his intellectual reputation.
Langan is also known for his concept of the Cognitive-Theoretic Model of the Universe (CTMU), which combines philosophy and mathematics. Though not widely accepted in academic circles, his work has both strong supporters and critics.
Kim Ung-Yong (IQ 210)
Once praised by Guinness for the world's highest IQ (210), Kim Ung-Yong could read four languages by age three and solved difficult math problems on Japanese TV at five.
At eight, Kim began working with NASA, gaining further acclaim. In 1978, he returned to South Korea to pursue a more private academic life, eventually earning a PhD in civil engineering and focusing on teaching and research at Shinhan University.
Kim has described the label of prodigy as a 'complex experience' - two quiet words that probably carry more weight than any IQ number ever could.
Sho Yano (IQ 200)
Yano showed his creativity early, composing music at age four and beginning college at age nine. He graduated from the University of Chicago at twelve - the youngest in school history. Later, he entered medical school directly, earning his degree from the Pritzker School of Medicine at twenty-one, making him one of the youngest doctors in the United States.
Evangelos Katsioulis (IQ 198-205)
Evangelos Katsioulis is a Greek doctor and psychiatrist who is a member of several high-IQ societies and academic groups. He has pursued research in medicine, philosophy and the effects of drugs on the mind.
Interesting fact: Katsioulis founded the World Intelligence Network and several high-IQ societies so exclusive that almost nobody on Earth qualifies — he basically built clubs he's nearly the only member of.
Rick Rosner (IQ 192-198)
Rick Rosner is also known for his high IQ and an unusual career path, like Christopher Langan. Before he became a television writer, he worked as a bouncer, a roller-skating waiter, and even a nude model. These jobs make his background stand out among people with high IQs.
Rosner later became known for television quiz shows and public discussions about intelligence testing.
A few more names deserve a mention: Michael Kearney, who holds a Guinness record as the world's youngest college graduate and whose IQ has been reported near 200; and Christopher Harding, an Australian who held the Guinness 'Smartest Man' title for over two decades before Marilyn vos Savant and whose name has since been almost entirely forgotten.
Keep in mind that many of these scores came from older versions of IQ tests, which used different scoring methods. Modern scales are tighter, so a score from decades ago may not mean exactly the same thing today. Nowadays, a score above 160-180 is exceptional, and anything close to 200 is very rare and almost unmeasurable.
The listed people are only those who have actually taken a test and achieved such high results. Statistically, given the number of people in the world, there are almost certainly others alive today with similar or even greater intelligence who have never taken a formal assessment. They are living ordinary lives and are not on any list.
This makes you wonder what we are really measuring when we try to rank genius?
The historical figures below never took a test at all, yet few would argue they don't belong in this conversation.
Historical Geniuses With Estimated Very High IQs
The IQ test was created in the early 20th century, with Alfred Binet's first version appearing in 1905. All of the people listed here either lived before that or did not take a test at all. Any IQ numbers linked to them are just guesses based primarily on their achievements and historical impact long after they died.
Albert Einstein
He was one of the most recognizable symbols of genius in popular culture. Einstein's theories of relativity changed the way we understand space, time, and gravity.
Nikola Tesla
He is a Serbian-American inventor whose development of alternating current (AC) electrical systems and induction motors laid the foundation for the modern electrical grid. Despite helping electrify the modern world, Tesla died nearly penniless in a New York hotel room.
Isaac Newton
He formulated the laws of universal gravitation, invented calculus, and explained the mechanics of planetary motion. Newton laid the foundations for much of this work during a single retreat from Cambridge caused by the plague, which lasted less than two years. He was known for becoming so deeply absorbed in his work that he often forgot to eat.
Leonardo da Vinci
He was well known as the painter of the Mona Lisa and The Last Supper. Da Vinci was also a scientist, anatomist, engineer, and inventor whose notebooks contained visionary designs for flying machines and armoured vehicles centuries ahead of their time.
"Talent hits a target no one else can hit; genius hits a target no one else can see." — Arthur Schopenhauer
Other figures frequently cited among history's greatest minds include:
- William Shakespeare - His plays and writings remain among the most influential works in literary history.
- Johann Wolfgang von Goethe - German writer, poet, and author of Faust, one of the greatest works of world literature.
- Blaise Pascal - He built one of the world's first mechanical calculators at eighteen.
- John von Neumann - He helped shape modern mathematics, quantum physics and computing.
History is full of extraordinary minds, and these are only some of the most famous examples. If we tried to explore every person who belongs on this list, the article itself would turn into a book.
25 Misattributed & Mythological IQ Scores
The internet is full of confident-sounding IQ claims about famous people that lack credible sources. Mensa has explicitly denied the membership of several celebrities listed in viral articles. The people below are intelligent and accomplished - but the specific numbers attached to their names are either unverified, disputed, or simply fabricated.
The Mythical 160 IQ
Here is perhaps the most telling detail: Albert Einstein, Stephen Hawking, Sylvester Stallone, Bill Gates, Ashton Kutcher, Quentin Tarantino, Dolph Lundgren, and Matt Damon are all said to have an IQ of 160 - a suspiciously round number repeated across different people and fields, suggesting these are myths, not genuine scores.
Neither Einstein nor Hawking ever took a modern standardized IQ test. Hawking was even asked once what his IQ was, famously replying:
“I have no idea what my IQ is. People who boast about their IQ are losers.”
In internet culture, 160 score has almost become shorthand for “genius,” which may explain why the exact same number appears attached to actors, physicists, billionaires, and athletes alike.
The Unverified Celebrity List
The remaining viral claims vary in their numbers but share the exact same problem: no named test, no administrator, no date, and zero original documentation.
The Hyper-Genius Claims: James Woods (180), Benjamin Netanyahu (180), Rowan Atkinson (178), Garry Kasparov (180-190), Bobby Fischer (180+).
Chess grandmasters such as Kasparov, Fischer and others are often said to have extremely high IQs. This shows how people tend to link top-level chess skills with nearly superhuman intelligence, even though there are no verified test scores to support this.
The Hollywood and Entertainment Elites: Lady Gaga (166), Marilyn Monroe (163–168), Cindy Crawford (154), Sharon Stone (154), Elon Musk (155–170), Snoop Dogg (147), Meryl Streep (143), Steve Martin (142), Madonna (140), Shakira (140), and Natalie Portman (140)
You might notice that most of these celebrity scores fall between 140 and 165. This range is the perfect spot for internet hoaxes. It is impressive enough to attract fans, but not so high that people instantly realize it’s fake.
The Case of William James Sidis (The Fake 250–300)
Let’s end with what might be the most famous fake IQ score, which is linked to William James Sidis. He was a child prodigy in the early 1900s who could read the New York Times at just 18 months old and spoke eight languages by the time he was eight. Many years after his death, articles began claiming his IQ was between 250 and 300. In truth, modern IQ scales don’t give any real meaning to scores above 200, and Sidis’s supposed score was just an estimate made by a biographer who looked at how quickly he learned as a child.
To sum up, whether we consider verified records, historical legends, or modern myths, it is important to keep in mind what IQ measures and what it does not.
IQ gives us a partial window into cognitive ability. It doesn't measure creativity, resilience, emotional depth, or the particular stubbornness it takes to spend decades on an unsolved problem. Terence Tao has all of those. So, apparently, does a former bouncer from Montana who built his own theory of the universe in his spare time.
The score is the least interesting thing about most of these people. It just happens to be the number that gets them on the list.
More useful resources:
» What Famous People Think About IQ?» Is IQ Important?
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