Caitlyn is a distinctive girls' name in United States, ranking #2492 in 2025 with 71 recorded births. The name reached its all-time peak in 1998 with 2,937 births ranking #115. Since 1996, the popularity has decreased by 97.0%. In 2025, approximately 1 in every 22,638 girls born was named Caitlyn. FALLING Recent data shows the name is currently falling.