Catelyn is a distinctive girls' name in United States, ranking #2339 in 2009 with 83 recorded births. The name reached its all-time peak in 2006 with 108 births ranking #1879. Since 1996, the popularity has increased by 20.3%. In 2009, approximately 1 in every 22,131 girls born was named Catelyn. FALLING Recent data shows the name is currently falling.