Kayln is a distinctive girls' name in United States, ranking #15450 in 2015 with 6 recorded births. The name reached its all-time peak in 1996 with 23 births ranking #4513. Since 1996, the popularity has decreased by 73.9%. In 2015, approximately 1 in every 297,442 girls born was named Kayln. FALLING Recent data shows the name is currently falling.