Tatia \t(a)-tia\ as a girl's name is a variant of Tatiana (Russian, Latin). See for meaning of Tatia.
The baby name Tatia sounds like Tasia, Datia and Tacia. Other similar baby names are Katia, Catia, Latia, Talia, Tavia, Tajia, Tania, Tazia, Tatie and Tati.