Caitlin is a distinctive girls' name in United States, ranking #609 in 2015 with 477 recorded births. The name reached its all-time peak in 1996 with 4,268 births ranking #84. Since 1996, the popularity has decreased by 88.8%. In 2015, approximately 1 in every 3,741 girls born was named Caitlin. STABLE Recent data shows the name is currently stable.