Who Has the Highest IQ in the World?

When it comes to measuring intelligence, IQ scores offer a glimpse into cognitive ability—but few reach the stratospheric levels seen by a select few. At the top of the list is YoungHoon Kim, a South Korean prodigy reportedly scoring an astonishing 276 on IQ tests, making him the highest on record. While details about Kim remain limited and his score isn't universally verified by mainstream psychometric institutions, his name circulates widely in discussions about extreme intelligence.

Coming in behind Kim are more widely recognized figures. Terence Tao, a Fields Medal-winning mathematician and professor at UCLA, boasts an IQ of 230. Recognized as a child prodigy, Tao was solving advanced math problems by age 8 and earned his PhD from Princeton by 20. His contributions to harmonic analysis and number theory have cemented his legacy far beyond just a number.

Another standout is Marilyn vos Savant, listed in the Guinness Book of World Records for highest IQ at 228. She gained fame in the 1980s for her column in Parade magazine, particularly for solving complex logic puzzles, including the infamous Monty Hall problem, which stumped even statisticians.

Then there's Christopher Hirata, who scored 225 and became the youngest American to win the International Physics Olympiad at just 13. He later worked with NASA on Mars mission planning and is now a cosmologist at Caltech.

While IQ can highlight exceptional mental aptitude, true impact often lies in how that intelligence is applied. These individuals didn’t just test well—they reshaped fields, challenged norms, and inspired generations. And in the end, perhaps the highest IQ matters less than the ideas it helps bring to life.

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