Kallen is a distinctive boys' name in United States, ranking #3423 in 2005 with 29 recorded births. This places Kallen in the top 26% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2014 with 159 births ranking #1177. Since 1996, the popularity has increased by 81.3%. In 2005, approximately 1 in every 68,867 boys born was named Kallen. STABLE Recent data shows the name is currently stable.