Kayelynn is a distinctive girls' name in United States, ranking #7069 in 1997 with 13 recorded births. The name reached its all-time peak in 2008 with 27 births ranking #5364. Since 1996, the popularity has increased by 44.4%. In 1997, approximately 1 in every 133,897 girls born was named Kayelynn. FALLING Recent data shows the name is currently falling.