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Name laws

When a state gets a veto — Icelandic lists, German Namensrecht, Japanese koseki and the quiet power of the registrar.

A naming law is the set of rules that decide whether a string may enter a civil register — and who may change it later.

Iceland’s naming committee, Germany’s Namensrecht and Japan’s koseki-plus-jinmeiyō system are the atlas’s three famous high-friction examples. Most English-speaking jurisdictions are looser but not lawless.

This page is a map of vetoes. It is not legal advice, and it will not smuggle a luck chart into a statute that does not contain one.

Hero articleNaming law
IcelandNaming committee
GermanyNamensrecht
JapanKoseki / jinmeiyō
U.S.State statutes
Not in the statuteStroke luck

Profile

Identity weight
65
Trend volatility
25
Legal friction
98
Cultural depth
70
Practical difficulty
72
Everyday reach
45

Seven chapters

History

How states acquired a veto over the personal name.

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Science

What comparative law and socio-legal studies actually show.

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Craft

Working with a veto before you print the cards or book the court.

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Culture

Headlines about banned names — comedy, nationalism and dignity.

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Trends

Name law moves with equality politics and with software, not with baby fashion.

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Voices

The clerks, committees and scholars who operate the veto.

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Worldwide

A comparative rack of vetoes.

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Frequently asked questions

What does a naming law usually regulate?
Allowed characters, length, offensive strings, sex-marking, surname transmission after marriage, and the procedure for change.
Why is Iceland famous?
Mannanafnanefnd reviews given names for grammatical fitness and list compatibility. Patronymics are the normal last element. High friction, small population, big headlines.
What is Namensrecht?
German civil-status rules on given names and family names, including child-welfare refusals and detailed marriage/child surname options.
What is the koseki?
Japan’s family register — the legal source of a person’s name. Given-name characters generally must come from approved sets (jōyō/jinmeiyō). Married couples have been required to share one surname.
Can the U.S. ban a baby name?
States can refuse numerals, obscenity or confusing strings, and courts handle adult changes. Friction is lower than Iceland, not zero.
Do SSA and ONS enforce names?
No. They count what was registered. The veto, if any, sat with the registrar earlier.
Is a Spanish second surname a legal requirement?
In Spain and many Latin American systems, two surnames are the normal legal form. Foreign software that drops one is the practical injury.
Can I cite this page in court?
No. Read the current statute and, if needed, a licensed lawyer. Laws move.

Open the name lab →