Meaning and name origin
Kathlyn \k(a)-thl-yn, kath-lyn\ as a girl's name is of Irish origin. Kathlyn is a variant of Kaitlin: phonetic form of Caitlin; Irish form of Catherine (Greek) "pure". Also a variant of Kathleen (Irish): variant of Katherine (Greek) "pure".
Kathlyn is a very popular first name for females (#1926 out of 4276, Top 45%) but an uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is the baby name popularity of the name Kathlyn for girls. Kathlyn reached its highest rank of #794 in the U.S. in 1910-1919. (2014 statistics).
Displayed below is a comparison of the popularity of the girl name Kathlyn and its variant forms. Popular variation forms ranked in the Top 1000/100 are Kathleen (#674), Kathlyn, Kaitlin and Cathleen. (2014 statistics).
Kathlyn▼ is also pronounced similarly to Cathlyne and Kathlyne. Other suggested similar baby names are Kaitlyn, Katalin, Katelan, Katelin▼, Katelyn, Katelynn▼, Kathlena, Kathryn▼, Kathylyne, Katilyn, Katlin▼, Katlyn▼, Katlyne, Katlynn and Kitlyn. These names tend to be less commonly used than Kathlyn.