Kayelynn is a distinctive girls' name in United States, ranking #8279 in 2014 with 14 recorded births. The name reached its all-time peak in 2008 with 27 births ranking #5364. Since 1996, the popularity has increased by 55.6%. In 2014, approximately 1 in every 127,567 girls born was named Kayelynn. FALLING Recent data shows the name is currently falling.