Kullen is a distinctive boys' name in United States, ranking #2365 in 2010 with 54 recorded births. The name reached its all-time peak in 2012 with 64 births ranking #2119. Since 1996, the popularity has increased by 237.5%. In 2010, approximately 1 in every 35,526 boys born was named Kullen. FALLING Recent data shows the name is currently falling.