Kayelyn is a distinctive girls' name in United States, ranking #9361 in 2003 with 11 recorded births. The name reached its all-time peak in 1999 with 14 births ranking #7031. Since 1996, the popularity has increased by 57.1%. In 2003, approximately 1 in every 166,095 girls born was named Kayelyn. RISING Recent data shows the name is currently rising.