Kaitlin is a moderately popular girls' name in United States, ranking #155 in 1999 with 2,085 recorded births. The name reached its all-time peak in 1996 with 3,136 births ranking #103. Since 1996, the popularity has decreased by 33.5%. In 1999, approximately 1 in every 851 girls born was named Kaitlin. STABLE Recent data shows the name is currently stable.