What does Catelyn mean?
Catelyn \c(a)-tel-yn, cat(e)-lyn\ as a name for girls. Catelyn's roots are Old French and Greek, and the name Catelyn means "pure". Catelyn is a form of Caitlin (Old French, Greek): Caitlín is the Irish Gaelic form of Cateline. Unique as a given name.
Catelyn has 43 more different forms via Caitlin: Caelin, Caelyn, Caetlin, Cailen, Cailene, Cailyn▼, Cailynn, Cait, Caiti, Caitie, Caitlan, Caitland, Caitlandt, Caitlann, Caitlen, Caitlinn, Caitlyn▲, Caitlyne, Caitlynn▼, Caitrin, Caity, Calen, Calin, Calyn, Calynn, Catlain, Catlin, Catline, Catlyn, Catlynn, Catriona, Cayelin, Caylen, Caylin, Caylyn, Kaitlan, Kaitlann, Kaitlin▼, Kaitlinn, Kaitlyn▲, Kaitlynn▼, Kayelin and Kayelyn.
Catelyn is an uncommon first name for women. Catelyn is an equivalently rare surname too for both adults and children. (2000 U.S. Census)
Prominent variation forms of Catelyn (#unlisted) listed in the Top 1000 are Cailyn, Caitlin (#496 a year ago), Caitlyn (#463), Caitlynn, Catriona, Kaitlin, Kaitlyn (#158), Kaitlynn (#928), Katelin, Katelyn (#172) and Katelynn (#567). This girl name was at the top of its popularity in the year 1998 and has become significantly less popular since, with the forms Cailyn, Caitlynn, Kaitlin, Kaitlynn and Katelin falling out of fashion. The most trendy girl names among these are Caitlin (#496), Caitlyn (#463), Kaitlyn (#158), Katelyn (#172) and Katelynn (#567). Below is a graphed comparison of the popularity of the girl name Catelyn and associated names. (2014 Birth Statistics)