The first name Callahan
A unisex name.
Pronounced /ˈkæləhæn/ 3 syllables Unisex Also a surname
Meaning and origin
From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach. Doublet of Kelly and Kellogg.
From Wiktionary (CC BY-SA 4.0).
Popularity
Babies registered in England and Wales, 1996–2025
In 2025, 10 boys were named Callahan, making it the 2,269th most popular boys’ name.
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Callahan with other names.
Popularity in the United States
Babies named Callahan at birth, 1880–2025
In 2025, 1,566 boys born in the United States were named Callahan, the 227th most popular boys’ name that year.
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Nicknames and spellings
Other spellings and forms
- Calahan
- Callaham
- Callihan
- Callaghan
Questions
- What does the name Callahan mean?
- From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach. Doublet of Kelly and Kellogg.
- How popular is the name Callahan?
- In 2025, 10 boys born in England and Wales were named Callahan, ranking 2,269th.
- Is Callahan a boy's or a girl's name?
- Both. Of the 7,031 US babies named Callahan since 1880, 14% were girls and 86% boys.
- When was Callahan most popular?
- 2025 in the United States, when 1,566 babies were named Callahan, its highest rank at 227th.
- How do you pronounce Callahan?
- Callahan is /ˈkæləhæn/, 3 syllables.
- What are other spellings of Callahan?
- Calahan, Callaham, Callihan and Callaghan.
- Is Callahan also a surname?
- Yes. Callahan is used as a surname as well as a first name; its surname page has the origin and how many people carry it.