Meaning & origin
Where it comes from
Calahan is a form of Callahan. Callahan comes from Irish.
Adapted from Wiktionary (CC BY-SA 4.0)
The story
Published U.S. birth records include this spelling as early as 1986. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Calahan through the years
- Babies since 1880
- 291
- 291 boys · 0 girls
- Most popular year
- 2025
- 26 babies
- 2025
- 26
- #4,063 for boys
- 2021–25 vs 2016–20
- +61%
- Rising fast
By the numbers
In 2025, this name appeared in 26 U.S. birth records for boys, ranking No. 4,063 among boys’ names. Average annual use for boys was 60.8% higher in 2021–2025 than in 2016–2020. Published U.S. population figures for this spelling include 231 as a first name in 2020; 1,903 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.
Calahan’s family of names
In English usage, Calahan as a surname has a related form in CALLAHAN.
The ring: nicknames and forms.
Nicknames & forms 1
Diminutives, pet forms, short forms and variants used alongside the name.
Similar names
If you love Calahan, these share its style, era, origin or sound, from outside its own family.
Callaghan
Callaghan is a masculine given name from Irish.
85% boys · 15% girls
Lachlann
“loch” · “place of”
>99% boys
Alastor
“helper and defender of mankind”
>99% boys
Caffrey
Caffrey is a surname from Irish.
>99% boys
Whelan
“descendant of Faolán”
>99% boys
Kian
“from an ancient family”
>99% boys
Keiran
“having dark features; the little dark one”
>99% boys
Eoghan
“the little swift one”
>99% boys