Callahan Meaning and Origin
The name Callahan (KAL-UH-HAN) is a boy’s name meaning “bright-headed” and is of Irish origin. Callahan is an Irish surname, derived from the Gaelic name O’Ceallachain, which means “descendant of Ceallachan”. Ceallachan was a personal name that means “bright-headed” or “strife”. The Callahan surname is most commonly found in the Munster region of Ireland, particularly in counties Cork and Kerry. It is also found in smaller numbers in other parts of Ireland, as well as in the United States, Canada, Australia, and other English-speaking countries. There are several notable people with the surname Callahan, including former NHL player Ryan Callahan, author and screenwriter Michael Callahan, and musician/composer Sean Callery. In popular culture, Callahan is also the name of a fictional character, Harry Callahan, played by Clint Eastwood in the “Dirty Harry” film series.
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