Caitlin is a popular girls' name in United States, ranking #89 in 2001 with 3,456 recorded births. The name reached its all-time peak in 1996 with 4,268 births ranking #84. Since 1996, the popularity has decreased by 19.0%. In 2001, approximately 1 in every 521 girls born was named Caitlin. STABLE Recent data shows the name is currently stable.