Callahan
An Irish surname anglicized from O Ceallachain, 'descendant of Ceallachan', a pet form of Ceallach — a name variously read as bright-headed or as related to strife.
Callahan in 2025
Callahan was given to 1,682 babies in the United States in 2025 — 1,566 boys and 116 girls, making it the 405th most popular name of the year. That is roughly one in every 1,971 babies born.
The history of Callahan
Callahan reached its highest point in 2025, when 1,682 babies were given the name, ranking 405th that year.
Across the 43 years of records since 1983, 7,031 babies have been named Callahan. Half of them were born before 2022, which places the name's centre of gravity with Generation Alpha.
Callahan by decade
| Decade | Babies named Callahan | Best rank |
|---|---|---|
| 1980s | 64 | 7,858 |
| 1990s | 269 | 4,489 |
| 2000s | 513 | 4,372 |
| 2010s | 1,342 | 1,680 |
| 2020s | 4,843 | 405 |
Where Callahan is heading
Callahan has grown more than 15 times over the past decade, from 110 babies in 2015 to 1,682 in 2025.
Names like Callahan
Names that rose and fell at the same time as Callahan.