Smartest Death Note characters, ranked
L, Light, Near and Mello: who is actually the smartest? A story built as a duel of minds, so its cast is the easiest to compare like for like.
L's IQ is about 160. What's yours?
25 questions · about 12 minutes
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The full ranking
| # | Character | Franchise | Range | Confidence | IQ |
|---|---|---|---|---|---|
| 1 | L LawlietDeath Note | Death Note | 150 to 168 | Medium | 160 |
| 2 | Light YagamiDeath Note | Death Note | 145 to 165 | Medium | 155 |
| 3 | NearDeath Note | Death Note | 138 to 158 | Medium | 148 |
| 4 | MelloDeath Note | Death Note | 128 to 148 | Medium | 138 |
How we ranked them
Each estimate follows the same five-part test: abstract reasoning, planning under uncertainty, learning speed and breadth, invention, and how often the character is outplayed. Being told that a character is a genius earns nothing, and repeated mistakes cost points.
A story built as a duel of minds, so its cast is the easiest to compare like for like. Ranking the cast together makes the trade-offs visible, because the same story gives every character the same chances to prove themselves. The rules are on the method page.
Why each one sits where it does
Death Note
L's IQ is best estimated at about 160 (range 150 to 168): he pins down Kira's region and then Kira's household from almost nothing, yet never gets proof.Death Note
Light Yagami's IQ is around 155 (range 145 to 165): a brilliant, adaptive planner who beats L, but whose pride and dependence on proxies finally cost him against Near.Death Note
Near's IQ is about 148 (range 138 to 158): a patient successor to L who catches Kira through preparation, a counter-trap and a team, rather than through solo brilliance.Death Note
Mello's IQ is around 138 (range 128 to 148): a gifted, aggressive problem-solver who gets results the cautious cannot, and who pays for the risks.
Smartest Death Note characters, ranked: common questions
Who is the smartest Death Note character?
How do you estimate a Death Note character's IQ?
Are these the official Death Note IQs?
Why do the estimates differ from fan claims?
What's your IQ?
The characters above are estimates from fiction. Your own reasoning is easy to check: 25 visual pattern and rule questions.
25 questions · about 12 minutes
These are our own estimates from what each story shows: an argument, not a measurement. The full method sets out the rubric and every rule we follow. Characters and franchises belong to their owners; LifeScore is not affiliated with them.