Surname Keogan (Keogan 
) , in the world, is a rare last name. The cognomen Keogan is characteristic of Ireland, where it is quite a rare surname, New Zealand, where it is a rare surname, and the United Kingdom. Not in comparison with a country's population, it most frequently occurs in Ireland, the United States, and the United Kingdom.
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| Keogan | United Kingdom, Ireland, United States, Argentina, Canada |
| george keogan American football, basketball and baseball coach (1890-1943), US (b. 1890) |
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sharon keogan Irish politician |
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donal keogan Irish Gaelic footballer, IE (b. 1991) |
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christopher keogan English snooker player, GB (b. 1992) |
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| katharine keogan researcher |
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| marguerite keogan Peerage person ID=587969 |
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| mary keogan researcher |
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| ailbhe keogan |
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