Caitlyn is a distinctive girls' name in United States, ranking #1633 in 2020 with 127 recorded births. This places Caitlyn in the top 9% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1998 with 2,937 births ranking #115. Since 1996, the popularity has decreased by 94.6%. In 2020, approximately 1 in every 12,721 girls born was named Caitlyn. FALLING Recent data shows the name is currently falling.