Last name Zaśko (Zaśko 
) , throughout the world, is a very rare family name. The cognomen Zaśko is habitual in Eastern Europe, particularly Poland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Zaśko | Poland |
| maria zaśko Polish Righteous Among the Nations, PL (b. 1920) |
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| piotr zaśko researcher |
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| stanisław zaśko Polish Righteous Among the Nations, PL |
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