Kallen is a distinctive boys' name in United States, ranking #2603 in 2006 with 46 recorded births. The name reached its all-time peak in 2014 with 159 births ranking #1177. Since 1996, the popularity has increased by 187.5%. In 2006, approximately 1 in every 44,677 boys born was named Kallen. STABLE Recent data shows the name is currently stable.