Kellen is a distinctive girls' name in United States, ranking #7428 in 2016 with 16 recorded births. The name reached its all-time peak in 1996 with 37 births ranking #3186. Since 1996, the popularity has decreased by 56.8%. In 2016, approximately 1 in every 110,718 girls born was named Kellen. FALLING Recent data shows the name is currently falling.