Kaitlin is a moderately popular girls' name in England & Wales, ranking #337 in 2010 with 139 recorded births. The name reached its all-time peak in 2004 with 233 births ranking #198. Since 1996, the popularity has increased by 143.9%. In 2010, approximately 1 in every 2,310 girls born was named Kaitlin. STABLE Recent data shows the name is currently stable.