Cognomen Nieborak (Nieborak 
) , all over the world, is a rare surname. The cognomen Nieborak is habitual in Poland, where it is a rare surname, France, and Australia, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Poland, France, and Germany. Also, Nieborak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nieborak | Australia, Germany, France, Poland, United States |
| antoni nieborak (b. 1882) |
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| tomasz nieborak Polish jurist, PL (b. 1976) |
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| anna nieborak researcher |
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