At its height in 2006, Catelyn reached #1,879 nationally — 108 babies received it that single year. Its strongest stretch was the 2000s — particularly the decade right around the peak. Today, Catelyn is a rare name in U.S. records with about 20 babies named Catelyn each year. Catelyn's usage has fallen in recent decades. In all, around 2,294 babies have been registered as Catelyn since 1880.