Also Swedish, German, FinnishPronounced: SEHS-dən (Danish), SHISH-tehn (Norwegian, Swedish), KEER-stehn (Finnish), KIR-stən (English)Meaning & History: Danish and Norwegian form and English variant of CHRISTINA.
I'm pretty sure this name is also Swedish, because the American Girl Doll who bears this name is Swedish. American Girl generally does their research and it seems unlikely that they'd pick a non-Swedish name for a Swedish character. I don't know for sure, so if any Swedes want to correct me, feel free.
Also German:
https://de.m.wikipedia.org/wiki/Kirsten_(Vorname)
https://www.behindthename.com/name/kirsten/top/germany