Kathiryn \k(a)-thir-yn, kath(i)-ryn\ as a girl's name is a variant of Catherine (Greek) and Katherine (Greek), and the meaning of Kathiryn is "pure".

The baby name Kathiryn sounds like Kathryn, Katheryn, Katharyn, Cathiryn, Kathirynn and Kathirin. Other similar baby names are Kathryne, Kathleyn, Katherynn, Katherin, Katharyne, Cathryn, Cathirin, Catheryn, Kathlyn, Kathrynn and Katheryne.