Kaitlin is a moderately popular girls' name in United States, ranking #158 in 2000 with 2,136 recorded births. The name reached its all-time peak in 1996 with 3,136 births ranking #103. Since 1996, the popularity has decreased by 31.9%. In 2000, approximately 1 in every 850 girls born was named Kaitlin. STABLE Recent data shows the name is currently stable.