Cathrinn \c(a)-thri-nn, cath-rinn\ as a girl's name is a variant of Catherine (Greek) and Katherine (Greek), and the meaning of Cathrinn is "pure".
The baby name Cathrinn sounds like Cathrynn, Cathrine and Catherinn. Other similar baby names are Catarina, Caterina, Kathrinna, Kathrine, Catrine, Catrina, Catrin, Cathryne, Cathryn, Cathline, Cathirin, Catherina, Catherin, Catheirn, Catharine, Catharina, Catharin, Caterine, Catarine, Caitrinn, Kathrynn and Kathrina.