Kailynn is a distinctive girls' name in United States, ranking #1204 in 2007 with 209 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 266.7%. In 2007, approximately 1 in every 9,198 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.