Catelyn is a distinctive girls' name in United States, ranking #2127 in 2008 with 95 recorded births. The name reached its all-time peak in 2006 with 108 births ranking #1879. Since 1996, the popularity has increased by 37.7%. In 2008, approximately 1 in every 19,902 girls born was named Catelyn. FALLING Recent data shows the name is currently falling.