Kallen is a distinctive boys' name in United States, ranking #1514 in 2018 with 113 recorded births. The name reached its all-time peak in 2014 with 159 births ranking #1177. Since 1996, the popularity has increased by 606.3%. In 2018, approximately 1 in every 16,066 boys born was named Kallen. STABLE Recent data shows the name is currently stable.