Caitlin is a moderately popular girls' name in United States, ranking #142 in 2003 with 2,311 recorded births. The name reached its all-time peak in 1996 with 4,268 births ranking #84. Since 1996, the popularity has decreased by 45.9%. In 2003, approximately 1 in every 791 girls born was named Caitlin. STABLE Recent data shows the name is currently stable.