Kaitlyn is a moderately popular girls' name in England & Wales, ranking #322 in 1998 with 111 recorded births. This places Kaitlyn in the top 6% of ranked UK girls' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2006 with 400 births ranking #139. Since 1996, the popularity has increased by 184.6%. In 1998, approximately 1 in every 2,605 girls born was named Kaitlyn. STABLE Recent data shows the name is currently stable.