Kellen is a distinctive girls' name in United States, ranking #16130 in 2025 with 5 recorded births. The name reached its all-time peak in 1996 with 37 births ranking #3186. Since 1996, the popularity has decreased by 86.5%. In 2025, approximately 1 in every 321,453 girls born was named Kellen. FALLING Recent data shows the name is currently falling.