Kaylen is a distinctive girls' name in United States, ranking #987 in 1998 with 205 recorded births. The name reached its all-time peak in 2009 with 425 births ranking #687. Since 1996, the popularity has increased by 54.1%. In 1998, approximately 1 in every 8,619 girls born was named Kaylen. FALLING Recent data shows the name is currently falling.