What is Evangelos Katsioulis's IQ?
Dr. Evangelos Katsioulis, a Greek psychiatrist and the founder of the World Intelligence Network, has a reported IQ of 205 on the SD16 scale, which corresponds to about 198 on the SD15 scale used by most standard tests. The results come from high-range IQ tests, and his score is frequently listed among the highest ever reported.
The same score on different scales
An IQ number only means something together with its scale. Tests report scores against a standard deviation, and the same rarity reads as a different number on each scale. That is why listings of his score disagree with each other: they are quoting different scales, not different results.
| Scale | Reported score |
|---|---|
| SD16 (e.g. Stanford–Binet convention) | 205 |
| SD15 (e.g. Wechsler convention) | ≈ 198 |
Who is Evangelos Katsioulis?
He is a psychiatrist (MD) working in psychiatry and psychotherapy, and the founder of the World Intelligence Network, an international network of high-IQ societies. He writes and speaks about intelligence, self-awareness and relationships; his own site is katsioulis.com.
Is he the highest IQ in the world?
No single ranking can settle that. There is no official world register of IQ scores, and high-range tests are a different instrument from supervised standard tests, so their numbers are not directly comparable. What can be said accurately is that published lists of the highest reported IQ scores regularly include him.
Ask him yourself
His AI twin, AKI, answers on this site in his own voice, grounded in his own published material, with a measured fidelity score on the label. It is clearly marked as AI, and the first minutes are free. If you have an IQ result of your own, that is a good first question to bring.
Common questions
- What is Evangelos Katsioulis's IQ?
- His reported score is 205 on a scale with standard deviation 16, which corresponds to about 198 on the SD15 scale most standard tests use. The results come from high-range IQ tests, and his score is frequently listed among the highest ever reported.
- Is Evangelos Katsioulis the highest IQ in the world?
- There is no official world register of IQ scores, and high-range test results are not directly comparable to supervised standard tests, so no single ranking settles it. What can be said accurately: published lists of the highest reported IQ scores regularly include him.
- Who is Evangelos Katsioulis?
- A Greek psychiatrist (MD) and the founder of the World Intelligence Network (WIN), an international network of high-IQ societies. He works in psychiatry and psychotherapy, and writes and speaks about intelligence, self-awareness and relationships.
- Can I ask him what my own IQ score means?
- You can put the question to his AI twin, AKI, on this site. It answers from his own published material in his own voice, is clearly labelled as AI, and the first minutes are free. It shares his general thinking; it is information, not a clinical assessment.
As of July 2026 · Reviewed by Dr. Evangelos Katsioulis. Scores are as publicly reported; this page explains them and is information, not an assessment. Related: intelligence assessment · psychometrics