Callahan is a moderately popular boys' name in United States, ranking #460 in 2023 with 664 recorded births. The name reached its all-time peak in 2024 with 907 births ranking #363. Since 1996, the popularity has increased by 2,556.0%. In 2023, approximately 1 in every 2,573 boys born was named Callahan. RISING Recent data shows the name is currently rising.