Surname Rádai (Rádai 
) , all around the world, is a very rare family name. The cognomen Rádai is characteristic of Eastern Europe, particularly Hungary, where it is a rare surname. Much less frequently, Rádai is the forename as well as the last name.
| rádai imre Hungarian actor, HU (b. 1907) |
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| erzsébet rádai HU (b. 1918) |
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| rádai sándor HU (b. 1932) |
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| zoltán rádai researcher |
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