Kailynn is a distinctive girls' name in United States, ranking #1475 in 2006 with 150 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 163.2%. In 2006, approximately 1 in every 12,674 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.