Mensa
Mensa is a high-IQ society that accepts members who score at or above the 98th percentile on approved supervised tests.
Reviewed by: Scientific Review Team · Last reviewed: July 2026
Founded in 1946, Mensa is the best-known high-IQ organization. Membership requires documented scores on approved instruments — not self-reported online quiz results.
Synonyms: Mensa International
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FAQ
What IQ do you need for Mensa?
Typically top 2% on an approved test — often around IQ 130 on SD-15 scales, but the approved test and norm matter.
Scientific sources
- Mensa International — membership criteria (official site).