McMahan is a Scottish and Irish surname, originally derived from the Gaelic MacMathghamhna, meaning “son of the bear”. The name has various spellings, including McMahon and MacMahon. It is particularly common in County Clare, Ireland, and is also found in Scotland and the United States. Notable people with the surname McMahan include American football player Josh McCown and musician Brian McManus. The McMahan coat of arms features a red shield with a gold lion rampant, symbolizing strength and courage.
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