Caitlin is a moderately popular girls' name in United States, ranking #393 in 2011 with 803 recorded births. The name reached its all-time peak in 1996 with 4,268 births ranking #84. Since 1996, the popularity has decreased by 81.2%. In 2011, approximately 1 in every 2,190 girls born was named Caitlin. STABLE Recent data shows the name is currently stable.