Niilo

Niilo is the Finnish form of Neil, ultimately derived from the Old Irish name Niall, whose root meaning is debated but most commonly interpreted as meaning champion or cloud. The name was carried from Ireland to Scotland and Scandinavia by Norse settlers and later spread further through medieval Europe. Niilo represents the Finnish adaptation of this broader northern European name tradition, fitting the language's characteristic sound patterns. Related forms include Njáll in Old Norse, Neal and Neil in English, and Nils in Swedish and Norwegian.