Not a letter in ALL the Scandinavian languages, eg. Finnish does not have the letter Å. Since there are a lot of (5-7%) Swedish speaking people in Finland, including me, Finns have to learn Swedish, which does have the letter Å, in school. And the letter Å is usually a little hard for them to learn since its pronounced like a 'o' in Finnish, thus they usually get it wrong when they try to spell something, 'o' instead of 'å' and vice versa. And this of course pisses of the before mentioned part of Finns that DO speak Swedish. Also notoriously difficult to find on a keyboard if your abroad and writing a mail home in Swedish.

Å is mostly used in Swedish, but can be found in Norweigan and Danish too. (I think, correct me if im wrong)