Kaelyn is a distinctive girls' name in United States, ranking #948 in 2018 with 280 recorded births. This places Kaelyn in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 2009 with 997 births ranking #332. In 2018, approximately 1 in every 6,073 girls born was named Kaelyn. STABLE Recent data shows the name is currently stable.