Caitlin is a moderately popular girls' name in United States, ranking #161 in 2004 with 2,050 recorded births. The name reached its all-time peak in 1996 with 4,268 births ranking #84. Since 1996, the popularity has decreased by 52.0%. In 2004, approximately 1 in every 896 girls born was named Caitlin. STABLE Recent data shows the name is currently stable.