59%RatingSave Gender Masculine Usage Finnish, Finnish Mythology Pronounced Pron. /ˈuk.ko/(Finnish) [key·simplify] Meaning & History Means "old man" in Finnish. In Finnish mythology Ukko is the god of the sky and thunder. People think this name isRate·Details informal rough strange Name DaysName Days? Finland: April 4 Categories agricultural deities, elderly, Finnish words, gods, mythology, old people, sky deities, supreme gods, thunder deities, weather, word names