Family name Ilberg (Ilberg 
) , globally, is a rare cognomen. The family name Ilberg is habitual in Germany, where it is a rare surname, Israel, and the United States, where it is an extremely rare surname. Much less frequently, Ilberg is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ilberg | Germany, Mexico, Israel, United States, Brazil |
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friedrich von ilberg German physician (1858-1916), DE (b. 1858) |
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| hugo ilberg German classical philologist and teacher (1828-1883), DE (b. 1828) |
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waldemar ilberg German physicist, DE (b. 1901) |
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| johannes ilberg German medical historian and classical philologist (1860–1930), DE (b. 1860) |
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| rosa ilberg holocaust victim, b. 1861-08-04, CZ (b. 1861) |
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| hermann ilberg holocaust victim, b. 1864-03-12, DE (b. 1864) |
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| georg ilberg DE (b. 1862) |
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| werner ilberg German writer (1896-1978), DE (b. 1896) |
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| konrad von ilberg DE (b. 1894) |
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| horst ilberg German sportsperson and table tennis player, DE (b. 1930) |
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| selma ilberg holocaust victim, birth date unknown |
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| ludwig ilberg holocaust victim, birth date unknown |
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