Catelyn is a distinctive girls' name in United States, ranking #2227 in 1999 with 67 recorded births. This places Catelyn in the top 13% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2006 with 108 births ranking #1879. In 1999, approximately 1 in every 26,474 girls born was named Catelyn. FALLING Recent data shows the name is currently falling.