Caitlyn is a distinctive girls' name in United States, ranking #1633 in 2020 with 127 recorded births. 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.