Meaning and name origin
Zosia \z(o)-sia\ as a girl's name is of Greek origin, and the meaning of Zosia is "wisdom". Zosia is a variant of Sophia (Greek): used in English-speaking countries since the 17th century.
Zosia is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Zosia and its source form. The only popular variation form ranked in the Top 1000/100 is Sophia (#3). (2014 statistics).
Zosia is also pronounced similarly to Cesia. Other suggested similar baby names are Dosia, Tosia, Zakia, Zofia, Zoia, Zolia and Zonia. These names tend to be more commonly used than Zosia.