Catelyn is a distinctive girls' name in United States, ranking #1904 in 1998 with 80 recorded births. The name reached its all-time peak in 2006 with 108 births ranking #1879. Since 1996, the popularity has increased by 15.9%. In 1998, approximately 1 in every 22,086 girls born was named Catelyn. FALLING Recent data shows the name is currently falling.