Kailynn is a distinctive girls' name in United States, ranking #1618 in 2020 with 129 recorded births. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 126.3%. In 2020, approximately 1 in every 12,523 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.