Kaelynn is a distinctive girls' name in United States, ranking #909 in 2012 with 288 recorded births. The name reached its all-time peak in 2012 with 288 births ranking #909. Since 1996, the popularity has increased by 512.8%. In 2012, approximately 1 in every 6,114 girls born was named Kaelynn. FALLING Recent data shows the name is currently falling.