Callahan is an Irish surname, anglicized from Ó Ceallacháin.[1] Those bearing it include:

In military

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In sports

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In politics and law

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In music

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In show business

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Others

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As a given name

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Calahan

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As a given name

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See also

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Callahan (surname)
Regnal titles
Preceded by King of Munster
c. 944 – 954
Succeeded by

References

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