Kayelynn is a distinctive girls' name in United States, ranking #5509 in 2010 with 25 recorded births. The name reached its all-time peak in 2008 with 27 births ranking #5364. Since 1996, the popularity has increased by 177.8%. In 2010, approximately 1 in every 71,093 girls born was named Kayelynn. FALLING Recent data shows the name is currently falling.