Kailynn is a distinctive girls' name in United States, ranking #1969 in 1999 with 80 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 40.4%. In 1999, approximately 1 in every 22,172 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.