Cathirin \c(a)-thi-rin\ as a girl's name is a variant of Catherine (Greek) and Katherine (Greek), and the meaning of Cathirin is "pure".
The baby name Cathirin sounds like Cathiryn, Catherin, Catharin and Kathirin. Other similar baby names are Kathiryn, Katherin, Catrin, Cathryn, Cathrinn, Cathrine, Catheryn, Cathern, Catherinn, Catherina, Catheren, Cathelin, Catheirn, Catharine and Catharina.