Catelyn is a distinctive girls' name in United States, ranking #3118 in 2014 with 53 recorded births. The name reached its all-time peak in 2006 with 108 births ranking #1879. Since 1996, the popularity has decreased by 23.2%. In 2014, approximately 1 in every 33,697 girls born was named Catelyn. FALLING Recent data shows the name is currently falling.