Kaitlyn is a moderately popular girls' name in United States, ranking #160 in 2014 with 2,060 recorded births. The name reached its all-time peak in 2000 with 8,759 births ranking #30. Since 1996, the popularity has decreased by 71.6%. In 2014, approximately 1 in every 867 girls born was named Kaitlyn. FALLING Recent data shows the name is currently falling.