Kullen is a distinctive boys' name in United States, ranking #5152 in 2024 with 19 recorded births. The name reached its all-time peak in 2012 with 64 births ranking #2119. Since 1996, the popularity has increased by 18.8%. In 2024, approximately 1 in every 90,280 boys born was named Kullen. FALLING Recent data shows the name is currently falling.