Cognomen Smadja (Smadja 
, Смаджа 
, סמדג'ה ) , all around the world, is quite a rare surname. The family name Smadja is habitual in British Virgin Islands, where it is a common surname, Reunion, where it is quite a common surname, and Guadeloupe. Measured by absolute frequency, the name is most common in France, Israel, and Reunion. Much less frequently, Smadja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Smadja | Reunion, Switzerland, France, Israel, Democratic Republic of the Congo |
| Смаджа | Ukraine |
| סמדג'ה | Israel |
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maurice smadja Israeli judoka, TN (b. 1932) |
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| alex smadja FR (b. 1897) |
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| henri smadja TN (b. 1897) |
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| brigitte smadja French writer, FR (b. 1955) |
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| serge smadja French physician, FR (b. 1957) |
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| david m. smadja researcher, FR (b. 1978) |
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| carole m smadja researcher |
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| frank smadja Ph.D. Columbia University 1991 |
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| sarah smadja researcher |
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| claire smadja researcher ORCID ID = 0000-0002-8248-9705 |
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| catherine smadja French official, FR |
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| jean-paul smadja actor |
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| stéphanie smadja FR (b. 1977) |
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| alain smadja FR |
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| sophia smadja |
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