Päiviö is a Finnish male name that is either derived from the Finnish word päivä meaning “day” and perhaps started off as a vernacular form of the Old Norse name, Dag. It may also be a Finnish form of the Sami name, Peivas, meaning, “son of Day.”
The feminine forms of Päivi and Päivä are far more common in Finland.
Other feminine forms include:
The designated name-day in both Finland and Estonia is June 16.