Cognomen Jaciuk (Jaciuk 
) , around the globe, is a rare last name. The surname Jaciuk is habitual in Argentina, where it is a rare surname, Lithuania, and Poland. In absolute terms, it most frequently occurs in Argentina, Poland, and Afghanistan. Likewise, Jaciuk is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jaciuk | Argentina, Afghanistan, United States, Poland, Brazil |
| frank jaciuk American baseball player (1940-), US (b. 1940) |
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| esther jaciuk Canadian stage and film actor based in Toronto, Ontario., CA |
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| marcin jaciuk researcher |
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| oksana jaciuk badminton player, LT (b. 1980) |
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| serhij jaciuk UA (b. 1974) |
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| sylwester jaciuk PL (b. 1993) |
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