No name is technically “illegal” in the UK - but plenty of names are effectively banned, because HM Passport Office will refuse to issue a passport in them. A name you can’t put on a passport, driving licence or bank account isn’t usable in real life, so in practice it’s off limits. Here is the full 2026 list of the names the UK rejects, with examples, plus the simple “common sense” rule that explains all of them.
The Quick List: What’s Banned
HM Passport Office will reject a name that is:
- Offensive or vulgar - swear words, sexually explicit terms, or slurs.
- A misleading title - Lord, Lady, Sir, Dr, Prince, King and similar, where unearned.
- Made of numbers or symbols - e.g. “7”, “@”, “Ke$ha”.
- Unpronounceable or far too long - random letter strings, or names over the character limit.
- Promoting crime or likely to cause public outrage.
Everything below explains each category with real examples.
1. Offensive or Vulgar Names
The Passport Office rejects names that could cause public outrage or offence. That includes swear words, sexually explicit language, and racial, religious or homophobic slurs, as well as names that promote criminal activity or terrorism. This is the most clear-cut category - if a reasonable person would be shocked by it, it will be refused.
2. Misleading Titles (Lord, Lady, Dr, Prince…)
You can’t adopt a title as part of your name if it implies a rank, qualification or status you don’t hold. Commonly refused titles include:
- Nobility: Lord, Lady, Baron, Baroness, Duke, Duchess, Earl, Prince, Princess, King, Queen.
- Professional: Dr, Professor, Judge, Sir, Dame.
- Military: General, Captain, Major, Colonel.
The concern is that the name would mislead people into thinking you have authority or credentials you don’t. (Novelty “Lord of the Manor” certificates don’t change this - they don’t make “Lord” a usable part of your legal name on a passport.)
3. Names Containing Numbers or Symbols
Official names must use letters of the Latin alphabet only. Banned examples include “R2-D2”, “Seven” written as “7”, “1066”, “Ke$ha”, “Prince!” and “@na”. The only punctuation generally permitted is the hyphen (for double-barrelled names like Smith-Jones) and the apostrophe (for names such as O’Connell or D’Angelo).
4. Unpronounceable or Excessively Long Names
A name that can’t be pronounced - a random string like “Jkmnsz” - will be refused as an unusable identifier. There are also length limits: a UK passport allows up to 30 characters each for forenames and surname, so extremely long names get truncated and may be rejected.
The “Common Sense” Rule
Every rule above comes down to one principle: a name must be a genuine, pronounceable identifier that isn’t offensive and doesn’t mislead. If a name would be seen as offensive, confusing or ridiculous by a reasonable person, expect it to be refused. If it’s a normal name - however unusual - it’s almost certainly fine.
What IS Allowed (You’d Be Surprised)
Plenty of unusual choices are perfectly legal: invented surnames, single names (mononyms), names from any culture or language using Latin letters, and creative-but-pronounceable first names. If you’re considering going by a single name, see our honest guide to a mononym deed poll in the UK for what works and where it causes friction.
Why Are Some Names Banned? (The Legal Basis)
There is no single “banned names act”. The restrictions come from HM Passport Office’s published policy on what it will and won’t print, backed by the general law that you can’t use a name to commit fraud, impersonate someone, or incite crime. Because your passport is your primary proof of identity, HMPO’s policy is effectively what makes a name usable in the UK - if they won’t issue it, the DVLA and your bank won’t recognise it either.
Real Examples of Names That Get Refused
Cases reported over the years show where the line sits. Refusals have included attempts to register a commercial brand as a name, names made of a single number or punctuation mark, titles such as “King” or “Lord” adopted to appear important, and deliberately offensive strings. The pattern is consistent: novelty at the expense of being a genuine, inoffensive, pronounceable identifier gets rejected.
Banned in England vs Scotland & Northern Ireland
The passport standards are UK-wide, so an offensive name, an unearned title or a name built from symbols is refused whether you’re in England, Scotland, Wales or Northern Ireland. The mechanism for changing your name differs slightly between jurisdictions, but the list of what’s unacceptable on a passport is the same across the whole UK.
Frequently Asked Questions
What names are illegal in the UK?
Strictly, none - but names that are offensive, use unearned titles, contain numbers or symbols, or are unpronounceable will be refused by HM Passport Office, which makes them unusable on official documents.
Can I legally name myself anything I want?
Almost. You have wide freedom, but you can’t choose a name that’s offensive, misleading (like a fake title), or made of numbers and symbols, because you won’t be able to get a passport in it.
Are numbers allowed in a legal name?
No. Names must use alphabet letters only. Hyphens and apostrophes are the main exceptions; digits and symbols are not allowed.
Can I use “Lord” or “Lady” in my name?
Not on a passport. Titles that imply unearned rank or status are refused, including ones from novelty “manorial title” packs.
Is there a limit on how long a name can be?
Yes - UK passports allow up to 30 characters each for forenames and surname, so very long names may be truncated or rejected.
Are banned names the same in England, Scotland and Wales?
Yes, for passport purposes. HM Passport Office applies the same standards UK-wide, so a name refused in England will be refused in Scotland, Wales and Northern Ireland too.
Can a name be rejected after I’ve already started using it?
You can call yourself almost anything informally, but the crunch comes when you apply for a passport or open an account. If the name breaks the rules it will be rejected at that point - so it’s worth checking before you commit to it on a deed poll.
Got a Name in Mind? Make It Official for £14.49
If your chosen name follows the simple rules above, you can make it legal today. A professionally printed UK deed poll from UK Name Change is £14.49, dispatched the same day by tracked Royal Mail, and accepted by HM Passport Office, DVLA, banks and all UK organisations.
