Tonia \t(o)-nia\ as a girl's name is a variant of Antoinette, Antonia (Latin) and Toni (English). See for meaning of Tonia.

The baby name Tonia sounds like Tonie, Tonya, Tona, Donia and Tania. Other similar baby names are Ionia, Sonia, Tonica, Tonina, Toria, Tosia, Toia and Zonia.