Kailynn is a distinctive girls' name in United States, ranking #1947 in 2001 with 89 recorded births. This places Kailynn in the top 11% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 290 births ranking #899. Since 1996, the popularity has increased by 56.1%. In 2001, approximately 1 in every 20,231 girls born was named Kailynn. FALLING Recent data shows the name is currently falling.