Last name Ośko (Ośko 
) , in the entire world, is a rare surname. The last name Ośko is habitual in Poland, where it is a rare surname, and the United States, where it is an extremely rare surname.
| tadeusz ośko PL (b. 1913) |
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| łucja ośko PL (b. 1927) |
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| edward ośko Polish politician, PL (b. 1957) |
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| mirosław ośko Polish sportsperson, PL (b. 1988) |
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| miłosz ośko Polish cyclist, PL |
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