MediaWiki sorts the Swedish letters Å, Ä and Ö in the order ÄÅÖ, but in the [[Swedish alphabet]] they are in the order ÅÄÖ.
Questions about this have been asked several times at Swedish Wikipedia. Usually the answer has been this is bug 164 in MediaWiki. But now that bug is marked fixed and says other sorting orders are possible.
It would be nice if Swedish Wikipedia (and maybe also other Swedish projects) used a sorting order where those letters are in Swedish alphabetical order.
(A current question about this is at [[sv:Wikipedia:WF#ABC....C3.84.C3.85.C3.96]])