Meaning & origin
The story
Published U.S. birth records include this spelling as early as 1983. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Callahan through the years
- Babies since 1880
- 7,031
- 6,030 boys · 1,001 girls
- Most popular year
- 2025
- 1,682 babies
- 2025
- 1,682
- #227 for boys · #1,748 for girls
- 2021–25 vs 2016–20
- +277%
- Rising fast
Boys, girls and both
The balance of boys and girls given this name has shifted over time. Recent births are 90% boys.
Where it’s given
By the numbers
In 2025, this name appeared in 1,566 U.S. birth records for boys, ranking No. 227 among boys’ names. Average annual use for boys was 306.7% higher in 2021–2025 than in 2016–2020. It also appeared in 116 birth records for girls in 2025. In 2025, Texas had the largest reported state-level birth count for boys with this name (131). Published U.S. population figures for this spelling include 2,150 as a first name in 2020; 48,861 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Callahan’s family of names
In English usage, Callahan shares an earlier linguistic root with Kelly. In English usage, Callahan has a related form in CALLAGHAN. In English usage, Callahan as a surname has a related form in CALAHAN.
Inner ring: spellings · middle: nicknames and forms · outer: across languages.
Nicknames & forms 5
Diminutives, pet forms, short forms and variants used alongside the name.
Spellings & scripts 1
The same name written differently, including transliterations into other scripts.
Across languages 2
Equivalents and cognates in other languages, plus older forms it grew from.
Similar names
If you love Callahan, these share its style, era, origin or sound, from outside its own family.
Kian
“from an ancient family”
>99% boys
Kade
“from the wetlands”
99% boys · 1% girls
Finnegan
“a fair-haired man”
99% boys · 1% girls
Cillian
“one who suffers strife”
>99% boys
Alastor
“helper and defender of mankind”
>99% boys
Keagan
“small and fiery woman” · “a small and fiery man”
80% boys · 20% girls
Lachlann
“loch” · “place of”
>99% boys
Caffrey
Caffrey is a surname from Irish.
>99% boys