Aleksander

Also Estonian: https://et.wikipedia.org/wiki/Aleksander_(eesnimi)

Also Kashubian: https://csb.wikipedia.org/wiki/3_maja
https://csb.wikipedia.org/wiki/24_pazdz%C3%A9rznika

Also Sorbian: https://hsb.wiktionary.org/wiki/P%C5%99idawk:Lis%C4%87ina_hornjoserbskich_p%C5%99edmjenow
https://hsb.wiktionary.org/wiki/P%C5%99idawk:Lis%C4%87ina_zapados%C5%82owjanskich_p%C5%99edmjenow.

I think it is a Russian and Ukrainian variant transcription of "Aleksandr".

This name is also VERY common in Norway, so I guess it its also a Scandinavian name. [noted -ed]