Kailynn is a distinctive girls' name in United States, ranking #1141 in 2008 with 226 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 296.5%. In 2008, approximately 1 in every 8,366 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.