Cognomen Prax (Prax 
, Прах 
) , worldwide, is quite a rare last name. The family name Prax is characteristic of Austria, where it is quite a rare surname, Czechia, and France, where it is a rare surname. Measured by absolute frequency, the name is most common in Germany, France, and the United States. Very seldom, Prax is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Prax | Austria, Germany, Czechia, United States, France |
| Прах | Ukraine, Russia |
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jean-louis prax French politician, FR (b. 1786) |
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louis prax FR (b. 1864) |
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| vinzenz prax CZ (b. 1859) |
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| maurice prax French journalist, FR (b. 1881) |
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| fernand prax French writer and poet (1890-1970), FR (b. 1890) |
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| valentine prax French painter (1897-1981), FR (b. 1897) |
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| alois prax (b. 1933) |
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| dieter prax badminton player, DE (b. 1946) |
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| brigitte prax badminton player, DE (b. 1950) |
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| mike prax American politician, US (b. 1956) |
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| jean-louis prax FR (b. 1958) |
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| denis prax French politician, FR (b. 1971) |
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| petr prax (b. 1962) |
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| katharina prax badminton player, DE (b. 1979) |
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| marcel prax researcher |
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