Family name Valko (Вълко 
, Valko 
, Валько 
) , around the world, is a common cognomen. The surname Valko is habitual in Eastern Europe, particularly Slovakia, where it is quite a common surname, Bulgaria, and Belarus. Measured by absolute frequency, the name is most common in Eastern Europe, particularly Ukraine, Slovakia, and Bulgaria. Much less frequently, Valko is the forename as well as the last name.
| štefan valko SK (b. 1910) |
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tanya valko PL (b. 1963) |
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| josef valko (b. 1919) |
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| ladislav valko (b. 1930) |
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| jan valko (b. 1935) |
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| ernest valko Slovakian judge (1953-2010), SK (b. 1953) |
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| marian valko researcher (ORCID 0000-0001-7483-0267), SK (b. 1963) |
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| odile valko French politician, FR |
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| klara valko researcher |
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| philipp o valko researcher |
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| michal valko computer scientist |
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| yulia valko researcher |
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| martin valko Slovak pornographic actor, SK |
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| nancy valko researcher |
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| peter p. valko researcher |
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