Kayelynn is a distinctive girls' name in United States, ranking #8283 in 2000 with 12 recorded births. The name reached its all-time peak in 2008 with 27 births ranking #5364. Since 1996, the popularity has increased by 33.3%. In 2000, approximately 1 in every 151,331 girls born was named Kayelynn. FALLING Recent data shows the name is currently falling.