Why isn’t it the “United Queendom and Northern Ireland” right now? There have always been queens around, haven’t there?
Because the realm ruled over by a monarch is a kingdom, regardless of the monarch’s gender. As it must be: Monarchs come and go, but the land remains.
“Queendom” isn’t a word.
In addition to what they said, “and Northern Ireland” is misplaced. It’s not (a) the United Kingdom of Great Britain (b) and Northern Ireland, but rather the United Kingdom of (a) Great Britain and (b) Northrn Ireland.
Perhaps the English translation of Queensryche? 
Freddy Mercury disagrees from his grave.
Well, it was already a United Kingdom before Ireland, too: United England and Scotland.
Well, the United Kingdom of Great Britain (i.e. England, Wales and Scotland) and Northern Ireland.
Yep. In 1603 King James VI of Scots became King of England (of wshich Wales was a part) as well – a personal union of crowns of two different nations. He himself referred to his domains as Great Britain, which spread slowly. 104 years later his great-granddaughter’s Government made it official, uniting the two Kingdoms in a single United Kingdom of Great Britain. The shorthand for this, though, was “Great Britain”, not “United Kingdom”. The King of England and then of Great Britain was separately King of Ireland through this entire period.
93 years later in 1800 under George III, the Irish Parliament was induced to unite with Great Britain in a new United Kingdom of Great Britain and Ireland, which now used the shorthand of “United Kingdom.” When Ireland regained home rule in 1922, six of the nine Ulster counties in the northeast voted to remain part of the U.K. *“Unionists”) and the realm name was modified by adding the “Northern” before Ireland to so indicate.
But just to confuse matters the UK is often referred to as Great Britain or even just Britain.
Wouldn’t it be a little awkward to change the name of a country just because of the gender of its monarch?
First sentence of the wikipedia page:
The United Kingdom of Great Britain and Northern Ireland (commonly known as the United Kingdom, the UK or Britain)
Useful [del]Venn[/del] Euler diagram to understand what is what from the British Isles to England.
What an excellent visual explanation of our situation.
Nice one !
And Great Britain. 
Actually it could be either. I think it’s intentionally ambiguous. The actual union is between England and Scotland, not between Great Britain and Northern Ireland. Northern Ireland was never a kingdom.
- There were two Unions, as detailed in my post above.
- My comment was in response to the erroneous name-clipping in the OP:
- As for Northern Ireland never having been a kingdom, tell that to the Dal Riada.
I know you’re probably joking but Dal Riada only ever encompassed a small part of what is now Northern Ireland, primarily what is now Co. Antrim.
While everything you’ve said is correct, and summarises the situation very well, it could be misunderstood to mean that each county had a vote as to whether to remain in the Union or join the Free State, and that 6 of them individually chose to remain in the Union.
Whereas in fact there was a single vote, on the question of whether those particular 6 counties would collectively join the Free State, and the decision was made to rejoin the UK.