Kaitlyn is a moderately popular girls' name in United States, ranking #118 in 2012 with 2,601 recorded births. The name reached its all-time peak in 2000 with 8,759 births ranking #30. Since 1996, the popularity has decreased by 64.1%. In 2012, approximately 1 in every 677 girls born was named Kaitlyn. FALLING Recent data shows the name is currently falling.