Kaitlynn is a moderately popular girls' name in United States, ranking #453 in 2004 with 670 recorded births. The name reached its all-time peak in 1999 with 822 births ranking #361. Since 1996, the popularity has decreased by 10.1%. In 2004, approximately 1 in every 2,740 girls born was named Kaitlynn. STABLE Recent data shows the name is currently stable.