Kayelynn is a distinctive girls' name in United States, ranking #8691 in 2015 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 2015, approximately 1 in every 137,281 girls born was named Kayelynn. FALLING Recent data shows the name is currently falling.