Also known as Thor (given name), Thor (first name)
male given name

Illegal & Banned Baby Names in the US: Full List 2026
See illegal baby names in the US and around the world, including state rules and names like Jesus, King, Adolf Hitler, and more.
usbirthcertificates.com →Choosing a baby name is personal, but it’s not always unlimited. In the United States, there’s no federal list of banned baby names , but states can reject names that include numbers, symbols, obscenity, or formatting that their vital records systems cannot process. Other countries are often stricter and may reject names that could harm, embarrass, or confuse a child . The United States has relatively relaxed naming laws, but each state sets its own rules for birth certificates. Most restrictions focus on how a name is written , rather than banning specific names nationwide. For example, in states like New Jersey, registrars may reject names that contain obscenity, numerals, symbols, or illegible wording . Likewise, California’s birth certificate system generally uses the standard English alphabet , which means accents and certain non-English characters may not appear on official records . This is why Elon Musk and Grimes adjusted their child’s name from “X Æ A-12” to “X AE A-XII” for registration. Need your baby’s official birth certificate ? Once their name is legally registered, you can order a certified copy online for school enrollment, passport applications, and other official needs. With US Birth Certificates, it’s fast and easy. Very few names are banned across the entire United States. However, some names have been rejected by courts or vital records offices because they include numbers, symbols, titles, or language that’s considered inappropriate. The issue usually comes up with the full name “Jesus Christ.” That version may be rejected because it can be treated as a religious title or identity rather than an ordinary personal name. “Adolf” by itself is not banned by federal US law. However, the full name “Adolf Hitler” is likely to face serious legal and administrative challenges because of its association with hate and historical harm. “King” is not banned nationwide in the US. Whether it’s accepted depends on the state and local registrar. Some jurisdictions may reject names that look like official titles or ranks . This is why names such as King, Queen, Majesty, Duke, Justice, Prince, and Princess appear frequently in banned-name discussions. Title-style names are handled differently depending on location . In Tennessee, a judge once ordered that a baby named “Messiah” be renamed, but that decision was later overturned, and the child was allowed to keep the name. Before choosing a controversial name, check your state’s birth registration rules or speak with your local vital records office. If in doubt, check directly with your local vital records office before registering an unusual spelling, special character, or title-style name. This helps avoid disappointment and delays with paperwork down the line. Outside the US, baby naming laws can be much stricter. Some countries, including Iceland, Denmark, Portugal, and Hungary, use official approved-name lists or name registers . Rules on banned baby names vary widely by country. In some places, officials reject names because they may embarrass the child, resemble official titles, conflict with local naming rules, or fail to fit the country’s language requirements. These names can resemble official titles or ranks , which can cause confusion on legal documents. French officials can reject names if they believe they’re not in the child’s best interests . In these cases, brands and celebrity names were deemed unacceptable. Names may be rejected if they are considered inappropriate, offensive, or potentially harmful to the child. Some Mexican states have rejected names that could expose a child to ridicule . Reported restrictions around names like “Sarah” are usually linked to spelling and cultural naming rules , rather than the name being offensive in Moroccan society. New Zealand authorities can reject names that are too long , offensive, title-like, or likely to embarrass the child. Portugal has naming rules that favor approved Portuguese-languag
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