Kaylen is a distinctive girls' name in United States, ranking #687 in 2009 with 425 recorded births. The name reached its all-time peak in 2009 with 425 births ranking #687. Since 1996, the popularity has increased by 219.5%. In 2009, approximately 1 in every 4,322 girls born was named Kaylen. FALLING Recent data shows the name is currently falling.