Surname Dorniak (Dorniak 
, Дорняк 
) , globally, is a rare last name. The surname Dorniak is habitual in Belarus, where it is quite a rare surname, Lithuania, and Poland, where it is a rare surname. Not in comparison with a country's population, it is commonest in Poland, Belarus, and Germany. Likewise, Dorniak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dorniak | Germany, France, Lithuania, United States, Poland |
| Дорняк | Belarus, Russia, Ukraine |
| ján dorniak SK (b. 1918) |
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| karolina dorniak researcher |
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| piotr dorniak researcher |
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| waldemar dorniak researcher |
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