Kaitlyn is a moderately popular girls' name in England & Wales, ranking #196 in 2002 with 218 recorded births. The name reached its all-time peak in 2006 with 400 births ranking #139. Since 1996, the popularity has increased by 459.0%. In 2002, approximately 1 in every 1,226 girls born was named Kaitlyn. STABLE Recent data shows the name is currently stable.