Kathrynne \k(a)-th-rynne, kathr(yn)-ne\ as a girl's name.
The baby name Kathrynne sounds like Kathryne and Kathrynn. Other similar baby names are Kamrynne, Kathryn, Kathrinna, Kathrine, Katherynn, Katharyne, Cathrynn, Cathryne, Kathlinne, Kathrene, Kathlyne, Kathirynn, Katheryne and Kathlynn.