Callen is a distinctive boys' name in United States, ranking #1936 in 2008 with 74 recorded births. The name reached its all-time peak in 2023 with 687 births ranking #450. Since 1996, the popularity has increased by 164.3%. In 2008, approximately 1 in every 27,567 boys born was named Callen. FALLING Recent data shows the name is currently falling.