Kullen is a distinctive boys' name in United States, ranking #8116 in 2002 with 8 recorded births. The name reached its all-time peak in 2012 with 64 births ranking #2119. Since 1996, the popularity has decreased by 50.0%. In 2002, approximately 1 in every 242,684 boys born was named Kullen. FALLING Recent data shows the name is currently falling.