Sohnia \so(h)-nia\ as a girl's name is a variant of Sonia (English). See for meaning of Sohnia.

The baby name Sohnia sounds like Sonya, Sonnie, Sonni and Zonia. Other similar baby names are Tonia, Donia, Ionia, Johnna, Johna, Mounia, Shania, Sofia, Sonnja, Sonja, Sohnnja, Sophia and Tahnia.