Question

What do you call people who live in wales?

Answer 1

They're called Welsh (plural) or a Welsh person (singular.)

Explanation:

If you want to refer to all the people in Wales, then you can say "the Welsh."
An example sentence: "The Welsh are kind people."
(I don't know if they actually are lol, that's just the sentence.)

If you want to talk about one person who lives in Wales, you can say "A Welsh person."
Another example sentence: "There's a Welsh person at my school, he just came from Wales."