Kaitlyn is a moderately popular girls' name in England & Wales, ranking #274 in 2014 with 175 recorded births. The name reached its all-time peak in 2006 with 400 births ranking #139. Since 1996, the popularity has increased by 348.7%. In 2014, approximately 1 in every 1,752 girls born was named Kaitlyn. STABLE Recent data shows the name is currently stable.