Kailynn is a distinctive girls' name in United States, ranking #2603 in 1997 with 49 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has decreased by 14.0%. In 1997, approximately 1 in every 35,524 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.