Kailynn is a distinctive girls' name in United States, ranking #1702 in 2021 with 122 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 114.0%. In 2021, approximately 1 in every 13,440 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.