Kailynn is a distinctive girls' name in United States, ranking #1550 in 2005 with 132 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 131.6%. In 2005, approximately 1 in every 13,998 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.