Cognomen Rubinstein (Rubinstein 
, רובינשטיין , Рубінштейн 
) , in the entire world, is a common surname. The family name Rubinstein is habitual in Israel, where it is quite a common surname, Estonia, where it is quite a rare surname, and Argentina. Measured by absolute frequency, it most frequently occurs in Israel, the United States, and Russia. Much less frequently, Rubinstein is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rubinstein | Australia, France, Argentina, United States, Israel |
| רובינשטיין | Israel |
| Рубінштейн | Ukraine |
| Рубинштейн | Ukraine, Kazakhstan, Belarus, Russia, Azerbaijan |
Rubenstein, Артур, Григорович, Григорьевич, Рубенштейн, Рубинстеин, רובינשטין, and רובנשטיין
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susanna rubinstein Austrian psychologist, UA (b. 1847) |
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| isaak rubinstein banker, politician, president of the Jewish Community in Chernivtsi, AT (b. 1804) |
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| grigory romanovich rubinstein (b. 1807) |
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helena rubinstein Polish-American businesswoman, art collector, and philanthropist, PL (b. 1872) |
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akiba rubinstein Polish chess player, PL (b. 1880) |
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ida rubinstein Russian actress and dancer, FR (b. 1883) |
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artur rubinstein Polish-American classical pianist (1887-1982), PL (b. 1887) |
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| mikołaj rubinstein (b. 1835) |
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erna rubinstein Hungarian violinist (1903–1983), US (b. 1903) |
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benjamin rubinstein Finnish psychoanalyst, FI (b. 1905) |
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| ignaz rubinstein holocaust victim, b. 1860-01-22, AT (b. 1860) |
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| laura rubinstein holocaust victim, b. 1861-11-27, AT (b. 1861) |
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| martha rubinstein holocaust victim, b. 1864-12-19 (b. 1864) |
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| solomon rubinstein Polish-American chess player, US (b. 1868) |
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| ida rubinstein Holocaust victim, born 1868-04-15, PL (b. 1868) |
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