Callen is a distinctive boys' name in United States, ranking #2436 in 2003 with 43 recorded births. The name reached its all-time peak in 2023 with 687 births ranking #450. Since 1996, the popularity has increased by 53.6%. In 2003, approximately 1 in every 45,936 boys born was named Callen. FALLING Recent data shows the name is currently falling.