Family name Balko (Balko 
, Balcon 
, Балко 
) , all over the world, is quite a common surname. The last name Balko is habitual in Slovakia, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Switzerland. Not in comparison with a country's population, it is the most numerous in France, Slovakia, and Ukraine. Very seldom, Balko is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Balko | Germany, Philippines, United States, France, Slovakia |
| Balcon | Germany, Italy, Mexico, United States, France |
| Балко | Kazakhstan, Ukraine, Belarus, Russia |
| Балько | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| antoni balko Officer of the Polish Army, UA (b. 1893) |
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| ján balko Slovak writer (1901-1992), SK (b. 1901) |
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| stanislav balko SK (b. 1943) |
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| hieroným balko SK (b. 1952) |
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| evžen balko Slovak businessman, SK (b. 1970) |
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| vladimír balko SK (b. 1963) |
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| vladimír balko SK (b. 1965) |
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| suzanne m balko researcher ORCID ID = 0000-0002-9713-3349 |
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| dan balko college basketball player (1960–1960) Montana |
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| ryan a balko researcher |
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| helen balko Peerage person ID=355685 |
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| fred balko Peerage person ID=355684 |
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| justin m. balko medical researcher |
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| ľudovít balko Ph.D. Comenius University 2012 |
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| daniel balko (b. 1971) |
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