Callahan

Where Callahan comes from

From Irish Ó Ceallacháin, from Ceallachán, diminutive of the given name Ceallach. Doublet of Kelly and Kellogg.
— Wiktionary's entry for Callahan
  • 3 syllables
Along the way
  1. 1983
    First appearance
    #6,238 among boys, 5 babies — the first year at least five got the name.
  2. 1995
    Mostly boys from here
    Until now more girls than boys got the name; from this year it's the other way round, and has stayed that way.
  3. 2025
    Peak, #227
    1,566 babies named Callahan — more than any year before or since.
In the dictionary
  • A male given name transferred from the surname.
Namesakes

No widely known Callahan turns up in the encyclopedias yet — the name is still all theirs to make famous.

Sources: the origin note and dictionary entry are quoted from Wiktionary (CC BY-SA 4.0); the namesakes come from Wikidata (CC0); the milestones are worked out from the SSA record.