Cognomen Diogenes (Diogenes 
, Diógenes 
, Диоген 
) , in all the world, is a common last name. The cognomen Diogenes is habitual in Latin America and the Caribbean, particularly Venezuela, where it is quite a rare surname, Honduras, and Nicaragua. In absolute terms, it most frequently occurs in Latin America and the Caribbean, particularly Brazil, Mexico, and Venezuela. More prevalently, Diogenes is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Diogenes | Peru, Philippines, Dominican Republic, Venezuela, Brazil |
| Diógenes | Peru, Dominican Republic, Venezuela, Brazil, Mexico |
| Диоген | Russia |
| Діоген | Ukraine |
| konstantinos diogenes Byzantine general (b. 1000) |
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| konstantinos diogenes Byzantine noble man, TR (b. 1001) |
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| leo diogenes Byzantine co-emperor (b. 1069) |
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| nikephoros diogenes Byzantine co-emperor (b. 1070) |
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| konstantinos diogenes Byzantine pretender (b. 1100) |
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| paulo osmar dos santos diogenes politician from Brazil, BR (b. 1961) |
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| antonius diogenes 2nd-century BC Greek writer |
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| anibal diogenes researcher |
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| marcus plinius diogenes ancient roman toreut |
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| marcus aurelius diogenes |
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| marcus lucretius diogenes |
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