Kaitlyn is a moderately popular girls' name in United States, ranking #134 in 2013 with 2,379 recorded births. The name reached its all-time peak in 2000 with 8,759 births ranking #30. Since 1996, the popularity has decreased by 67.1%. In 2013, approximately 1 in every 737 girls born was named Kaitlyn. FALLING Recent data shows the name is currently falling.