You do occasionally see "North Britain" for Scotland: https://en.wikipedia.org/wiki/North_Britain
It was once common, and in modern times it's occasionally used as a deliberate affectation.
Re:I got 100% off my train travel
by PaulDavisThe1st on Wednesday March 19, 2025 @07:31PM
(#43418352)
When I grew up (in London), Watford was always the "gateway to the north".
On the other hand, Balham was the "gateway to the south" (which reached as far as the Mediterranean).
I think the original phrase was "North of the Watford Gap", but people often mis-abbreviate to "North of Watford". The Watford Gap is not the same place as Watford. It's about 75 miles north of London. Watford is within London's motorway ring road (The M25), and on the underground map. Its only about 17 miles away from the centre.
No normal person refers to Scotland as "north UK" when they could say Scotland, though.