Kaitlyn is a moderately popular girls' name in England & Wales, ranking #405 in 2016 with 111 recorded births. The name reached its all-time peak in 2006 with 400 births ranking #139. Since 1996, the popularity has increased by 184.6%. In 2016, approximately 1 in every 2,767 girls born was named Kaitlyn. STABLE Recent data shows the name is currently stable.