Kallen is a distinctive boys' name in United States, ranking #1369 in 2017 with 130 recorded births. The name reached its all-time peak in 2014 with 159 births ranking #1177. Since 1996, the popularity has increased by 712.5%. In 2017, approximately 1 in every 14,233 boys born was named Kallen. STABLE Recent data shows the name is currently stable.