Popularity: 6580
Origin: Greek
Meaning: wisdom
Sonja is a girl's name of Greek origin. It is a variation of Sophia, which means "wisdom." As a given name, Sonja is especially popular in Scandinavian and Slavic countries, while in the US, the alternative spellings Sonia and Sonya are more common. If you believe your little one is an old soul with intelligence and perception beyond their years, Sonja is an inspirational name worth considering.