Basia \b(a)-sia\ as a girl's name is a variant of Barbara (Latin) and Basha (Polish), and the meaning of Basia is "foreign woman; stranger".

The baby name Basia sounds like Basja, Betia, Pazia and Pasha. Other similar baby names are Casia, Tasia, Blasia, Kasia, Nasia, Rasia and Bastia.