Kailynn is a distinctive girls' name in United States, ranking #1893 in 2000 with 90 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 57.9%. In 2000, approximately 1 in every 20,177 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.