Surname Dérer (Dérer 
) , around the world, is a rare cognomen. The cognomen Dérer is habitual in Eastern Europe, particularly Slovakia, where it is quite a rare surname, and Hungary, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dérer | Hungary, Slovakia |
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ivan dérer Slovak lawyer and politician, member of parliament and minister of Czechoslovakia, SK (b. 1884) |
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| gustáv dérer SK (b. 1845) |
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| jozef dérer attorney in Malacky, Slovakia (1856-1918), SK (b. 1856) |
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| ján dérer SK (b. 1847) |
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| michal dérer SK (b. 1847) |
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| jozef dérer (b. 1887) |
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| ladislav dérer Slovak doctor (1897-1960), SK (b. 1897) |
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| jozef dérer (b. 1887) |
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| ladislav dérer Czechoslovak professor, SK (b. 1898) |
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| július dérer (b. 1895) |
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| július dérer Slovakian Righteous Among the Nations, SK |
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