Olja is a dominantly female name, but sometimes male name, in Croatia almost exclusively Croatian. It is one of the relatively common names (among the top two thousand) in Croatia, with over two hundred namesakes living there.
The relative popularity of names Olja in Croatia
The name Olja was the most popular from years 1986 to 1996. The peak year was 1987.
Name Olja is present mainly in North-West Croatia, and scarcely in Central Croatia. Most of the persons named Olja live in the following cities and municipalities: Zagreb (about forty), Split (less than twenty), Rijeka (less than twenty).