Callen is a distinctive boys' name in United States, ranking #2278 in 1998 with 39 recorded births. The name reached its all-time peak in 2023 with 687 births ranking #450. Since 1996, the popularity has increased by 39.3%. In 1998, approximately 1 in every 49,008 boys born was named Callen. FALLING Recent data shows the name is currently falling.