Kaitlyn is a moderately popular girls' name in United States, ranking #346 in 2017 with 938 recorded births. The name reached its all-time peak in 2000 with 8,759 births ranking #30. Since 1996, the popularity has decreased by 87.0%. In 2017, approximately 1 in every 1,840 girls born was named Kaitlyn. FALLING Recent data shows the name is currently falling.