Kailynn is a distinctive girls' name in United States, ranking #942 in 2012 with 271 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 375.4%. In 2012, approximately 1 in every 6,497 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.