People With Last Name Callahan
The surname Callahan originates from Ireland and is an anglicized form of the Gaelic Ó Ceallacháin. This name is derived from the personal name Ceallach, which is believed to mean "bright-headed" or "strife." The Ó Ceallacháin family historically hailed from the Munster region in Ireland, particularly associated with County Cork. The anglicization of Irish surnames was a common practice, often resulting in the adaptation of Gaelic names to forms more easily pronounced in English.
With an estimated 50524 bearers, the surname Callahan is positioned at #682 in the national Census. That amounts to roughly 17 people per 100,000 population.
Our database contains over 10845 people with the last name Callahan. This surname is most commonly found in California, Florida, Georgia. We have over 11 unique first names combined with the last name Callahan in our records. The most frequent first names associated with this surname are Michael, John, James.
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