Zosia \z(o)-sia\ as a girl's name is a variant of Sophia (Greek), and the meaning of Zosia is "wisdom".
The baby name Zosia sounds like Cesia, Sasha, Cesya, Cytia, Sasa, Susie, Susi and Zizi. Other similar baby names are Zofia, Dosia, Tosia, Zolia, Zonia and Zoia.