Family name Dunay (Dunay 
, Дунай 
, Дунаы ) , in all the world, is quite a rare last name. The surname Dunay is habitual in Eastern Europe, particularly Belarus, where it is quite a rare surname, Ukraine, and Hungary. Not in comparison with a country's population, it is the most numerous in Ukraine, the United States, and Russia. Very seldom, Dunay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dunay | Hungary, United States, Philippines, Cuba, Turkey |
| Дунай | Kazakhstan, Ukraine, Belarus, Kyrgyzstan, Russia |
| Дунаи, Дунаы | Russia |
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dunay pál fencer (1909-1993), HU (b. 1909) |
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| henry dunay American goldsmith and jewelry designer, US (b. 1935) |
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| gejza dunay (b. 1928) |
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| gejza dunay Slovak entomologist, SK (b. 1960) |
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| ervin dunay (b. 1953) |
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| dunay schmulian researcher |
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| miklós pál dunay researcher |
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| ildiko rita dunay researcher |
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