I am not sure whether this is the right group for this question because it is about the recent past. But I didn't find a more suitable forum.

Checking old articles and documents from my country I saw that everywhere the United Kingdom was called Great Britain, but as far as I know the name of the UK was established 2 centuries ago. Traveling to other countries I saw also a lot of document forms from the 1990s and even early the 2000s referring to Great Britain. Also some drop down boxes in old software apps had that name. Actually the name stuck also in the UK because I remember old cars with the international sticker with the GB label.

Why did the old name stick for so long? When did it actually disappear from the international naming conventions?

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    I recall reading that this was because Ukraine had gotten the UK 2-letter code by the rules for generating code, and the UK was given GB as next-best. I don't recall where, unfortunately, or I'd make it an answer.
    – Mark Olson
    Mar 18, 2023 at 13:27
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    'Great Britain' isn't 'the old name'. This website explains that it is a geographical term, whereas 'United Kingdom' is a political term. Mar 18, 2023 at 17:11
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    Can you please provide an example of one of these "old articles and documents"? My understanding from the Brits I know is that these terms all have quite specific defined meanings, so without the context of the references being made, its nearly impossible to talk about this intelligently.
    – T.E.D.
    Mar 18, 2023 at 21:59
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    @Spencer - I was interpreting 'the old name' as meaning 'an obsolete name', which it isn't. Mar 19, 2023 at 8:26

2 Answers 2


Great Britain was the official name of the Kingdom of Great Britain (1707-05-01 to 1800-12-31) and consisted of the Kingdoms of England (which included Wales) and Scottland. Thus the whole island of Great Britain formed one Kingdom.

With the Act of Union (Ireland) 1800, the kingdoms of Great Britain and Ireland were united into one kingdom.

That it be first article of the union of the kingdoms of Great Britain and Ireland, that the said kingdoms of Great Britain and Ireland shall, upon the first day of January, which shall be in the year of our lord one thousand eight hundred and one, and for ever, be united into one kingdom, by the name of “the united kingdom of Great Britain and Ireland,” and ... shall be such as his Majesty by his royal proclamation under the great seal of the united kingdom shall be pleased to appoint.

Since the names of countries, nationalities, and languages are proper nouns, the consistent use of united kingdom (and not United Kingdom) within the act implies that the term was not intended to be used as an official short name.

International treaties, signed afterwords, still used Great Britain in the same way as France was used for the French Republic (i.e. in a geographical sense).

  • Final Act of the Congress of Vienna (1815-06-09)
    • His Majesty the King of the United Kingdom of Great Britain and Ireland:
    • ART. XVII. Austria, Russia, Great Britain, and France, guarantee, ...
    • and the Kings of Great Britain and Prussia,
  • International Convention With respect to the Circulation of Motor Vehicles, signed at Paris, the 11th October 1909
    • His Majesty the King of the United Kingdom of Great Britain and Ireland and of the British Dominions beyond the Seas, Emperor of India;
    • For Great Britain :
    • Great Britain and Ireland, GB;
  • League of Nations Passport Conference, Geneva, 1926-05-18
    • Mr. Haldane PORTER (Great Britain) said that, when a foreigner had to register with police in the United Kingdom, ...

Here it becomes apparent that a different terminology is being used depending from where it is being use (inside or outside of the United Kingdom).

Treason Felony Act 1848
If any person whatsoever shall, within the United Kingdom or without, compass, imagine, invent, devise, or intend to deprive or depose our Most Gracious Lady the Queen, from the style, honour, or royal name of the imperial crown of the United Kingdom, or of any other of her Majesty’s dominions and countries, or to levy war against her Majesty, within any part of the United Kingdom, ...

The question arises why, if parlament uses United Kingdom (since at least 1848) why is Great Britain then used in the Motor Vehicles convention of 1909 where the GB car shield was introduced?

It would seem that, for whatever reason, the British goverment preferred that Great Britain should be used in an international context.

It may be that the British goverment thought having the word 'Britain' in the name was better, while inside Britain the term United Kingdom was commonly used.

The regulation page of this passport, issued 1935, would support this view:

When did it actually disappear from the international naming conventions?

ISO 3166-2:GB is the entry for the United Kingdom of Great Britain and Northern Ireland in ISO 3166-2.

  • UK was exceptionally reserved on request of the United Kingdom lest UK be used for any other country in 1974. Its main usage is the .uk internet ccTLD.

.gb is a reserved Internet country code top-level domain (ccTLD) for the United Kingdom, derived from Great Britain.
The domain was introduced with RFC 920 in October 1984 that set out the creation of ccTLD generally using country codes derived from the corresponding two-letter code in the ISO 3166-1 list. However, the .uk domain had been created separately a few months before the compilation of this list [1985-07-24]. Consequently, .gb was never widely used. It is no longer possible to register under this domain.

As far as the vehicle distinguishing sign is concerned, the replacement of "GB" with "UK" came into effect on 2021-09-28.

The Secretary-General of the United Nations, acting in his capacity as depositary, communicates the following:

On 28 June 2021, the Secretary-General received from the Government of the United Kingdom of Great Britain and Northern Ireland, in accordance with Article 45 (4) and Annex 3 of the Convention, a notification stating that the United Kingdom is changing the distinguishing sign that it had previously selected for display in international traffic on vehicles registered in the United Kingdom, from “GB” to “UK”, and that “this change will apply only to the United Kingdom of Great Britain and Northern Ireland, and will not extend to any territories for the international relations of which the United Kingdom is responsible”.

The change in the United Kingdom’s distinguishing sign will take effect three months after the deposit of this notification, i.e., on 28 September 2021, in accordance with Article 54 (4) of the Convention.


  • All this does is prove we're talking about less-formal references...it seems some time in the early 80's people stopped emphasizing the "Great Britain" part of the name and emphasizing the "United Kingdom" part.
    – Spencer
    Mar 19, 2023 at 12:55
  • @Spencer It may be that the British goverment thought having the word 'Britain' in the name was better (or they didn't give the matter any thought at all). Mar 19, 2023 at 13:33
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    Yes, I think that's the key....I want to blame it on Thatcher because of the timing (the Troubles+Falklands war) but it's pure speculation.
    – Spencer
    Mar 19, 2023 at 13:44
  • @MarkJohnson +1 I suspect that in the 80s, after decades of decline, our government favoured the cachet of having 'Great' in the name. Similar to the way 'Rover Group' was used to disguise the decline of 'British Leyland', back then. Mar 20, 2023 at 11:57
  • @DaveGremlin And yet, the term Great Britain has been used as a short name, in many different languages (in French: Grande-Bretagne ; in German: Großbritannien), for more than 120 years. Mar 20, 2023 at 12:27

A complete answer is given here:

UK and GB are two different notions, since UK also contains Northern Ireland, while GB does not.

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    Yet the Great Britain Olympic team includes Northern Ireland athletes as well as Scotland and Wales. And has for decades well before the “Team GB” branding.
    – Jon Custer
    Mar 18, 2023 at 16:08

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