All around the world, Callaghan (Callaghan 
, Калаган 
, Калахан 
) is a rare gender-neutral forename. The first name Callaghan is habitual in Kazakhstan, where it is a rare unisex name, South Africa, where it is a very rare largely male, but uncommonly female name, and the United Kingdom, where it is a very rare gender-neutral name. In absolute terms, the name is most common in China, Kazakhstan, and the United States. Predominantly, Callaghan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Callaghan | Canada, Australia, United States, United Kingdom, Ireland |
| Калаган | Kazakhstan, Ukraine |
| Калахан | Kazakhstan, Russia, Ukraine |
| Каллаган | Russia, Ukraine |
O'Callaghan, and Цаллагхан
Callaghan is also a name for the fictitious and mythical characters: .
| miles morris callaghan American politician, US (b. 1868) |
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| morley callaghan Canadian writer, CA (b. 1903) |
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| duke callaghan American cinematographer, US (b. 1914) |
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slade callaghan Barbadian jockey, BB (b. 1970) |
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| forbes callaghan Peerage person ID=291317 |
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| stewart callaghan Peerage person ID=291263 |
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| ross callaghan Peerage person ID=291326 |
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| grant callaghan Peerage person ID=291291 |
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| finlay callaghan Scottish rugby union player |
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