Callahan is a distinctive boys' name in United States, ranking #660 in 2021 with 410 recorded births. The name reached its all-time peak in 2024 with 907 births ranking #363. Since 1996, the popularity has increased by 1,540.0%. In 2021, approximately 1 in every 4,264 boys born was named Callahan. RISING Recent data shows the name is currently rising.