Kaitlyn is a moderately popular girls' name in United States, ranking #386 in 2018 with 805 recorded births. The name reached its all-time peak in 2000 with 8,759 births ranking #30. Since 1996, the popularity has decreased by 88.9%. In 2018, approximately 1 in every 2,112 girls born was named Kaitlyn. FALLING Recent data shows the name is currently falling.