Last name Dwojak (Dwojak 
, Двояк 
) , around the globe, is quite a rare surname. The cognomen Dwojak is characteristic of Poland, where it is quite a rare surname, Ukraine, where it is a rare surname, and Argentina. Likewise, Dwojak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dwojak | Germany, United States, Poland, Argentina, Canada |
| Двояк | Kazakhstan, Ukraine, Russia |
| loretta dwojak All-American Girls Professional Baseball League player, US (b. 1925) |
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pete dwojak German actor, DE (b. 1982) |
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| feliks dwojak (b. 1924) |
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| michal dwojak researcher |
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| sunshine dwojak researcher |
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| amanda dwojak researcher |
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