Catelyn is a distinctive girls' name in United States, ranking #2405 in 2012 with 77 recorded births. The name reached its all-time peak in 2006 with 108 births ranking #1879. Since 1996, the popularity has increased by 11.6%. In 2012, approximately 1 in every 22,867 girls born was named Catelyn. FALLING Recent data shows the name is currently falling.