Caitlin is a moderately popular girls' name in United States, ranking #193 in 2005 with 1,778 recorded births. The name reached its all-time peak in 1996 with 4,268 births ranking #84. Since 1996, the popularity has decreased by 58.3%. In 2005, approximately 1 in every 1,039 girls born was named Caitlin. STABLE Recent data shows the name is currently stable.