Kaitlin is a moderately popular girls' name in England & Wales, ranking #198 in 2004 with 233 recorded births. The name reached its all-time peak in 2004 with 233 births ranking #198. Since 1996, the popularity has increased by 308.8%. In 2004, approximately 1 in every 1,227 girls born was named Kaitlin. STABLE Recent data shows the name is currently stable.