Hermione Granger MBTI: ISTJ (Logistician)
Best fit: ISTJ
Hermione Granger (from Harry Potter) is most often typed as ISTJ (The Logistician) - rule-following, meticulous, masters every system she enters. The typing reflects consensus across typology communities and pattern analysis, not a clinical result.
What this typing is based on
Hermione Granger consistently shows the ISTJ pattern across appearances throughout the story. Type attribution is inferential - writers rarely assign an official type - so this reflects behavioral evidence, not a diagnosis.
Could Hermione Granger be a different type?
Communities debate a few alternatives, usually one letter off. But the weight of the cognitive-function evidence lands on ISTJ, which is why it remains the dominant typing.
What Hermione Granger reveals about ISTJ
Hermione Granger is one of the more recognizable ISTJ examples. The way they make decisions and approach problems shows the ISTJ cognitive style clearly, which is why people learning about ISTJ often find this example clarifying.
Frequently asked questions
What MBTI type is Hermione Granger?
Hermione Granger is most often typed as ISTJ, the Logistician.
Has Hermione Granger confirmed their MBTI type?
Most characters are never given an official type by their creators.
What other types could Hermione Granger be?
Some typings argue for an adjacent type (switching one letter), but the cognitive-function evidence holds strongest for the consensus type.
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Are you ISTJ?
Find out in 60 seconds with our free MBTI test. Same framework used to type Hermione Granger.
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Kam, B. (2026). Hermione Granger MBTI: ISTJ (Logistician). Personality.fyi. https://personality.fyi/blog/hermione-granger-mbti
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