Kailynn is a distinctive girls' name in United States, ranking #1431 in 2017 with 159 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 178.9%. In 2017, approximately 1 in every 10,855 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.