Kailynn is a distinctive girls' name in United States, ranking #1084 in 2010 with 230 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 303.5%. In 2010, approximately 1 in every 7,728 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.