Kaelyn is a distinctive girls' name in United States, ranking #744 in 1998 with 292 recorded births. This places Kaelyn in the top 4% 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 1998, approximately 1 in every 6,051 girls born was named Kaelyn. STABLE Recent data shows the name is currently stable.