Kaitlyn is a moderately popular girls' name in England & Wales, ranking #206 in 2012 with 245 recorded births. The name reached its all-time peak in 2006 with 400 births ranking #139. Since 1996, the popularity has increased by 528.2%. In 2012, approximately 1 in every 1,315 girls born was named Kaitlyn. STABLE Recent data shows the name is currently stable.