Austyna \a(u)-sty-na, aus-tyna\ as a girl's name is a variant of Augusta (Latin), and the meaning of Austyna is "great, magnificent".
The baby name Austyna sounds like Austyne, Austina, Austyn and Justyna. Other similar baby names are Austine, Augustyna, Agustina, Azusayna, Justina and Justyne.