Keogan is an anglicized form of the Irish surname Mac Eochagain, which was wrongly corrupted to Ó Ceogáin. Notable people with the surname include:
Christopher Keogan (born 1992), English snooker player Donal Keogan (born 1991), Irish Gaelic footballer George Keogan (1890–1943), American football, basketball and baseball coach Murray Keogan (born 1950), Canadian ice hockey player Sharon Keogan (born 1967), Irish politician
See also Keegan
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