Kaitlyn is a moderately popular girls' name in United States, ranking #197 in 2015 with 1,662 recorded births. The name reached its all-time peak in 2000 with 8,759 births ranking #30. Since 1996, the popularity has decreased by 77.0%. In 2015, approximately 1 in every 1,074 girls born was named Kaitlyn. FALLING Recent data shows the name is currently falling.