Last name Wallack (Wallack 
) , in all the world, is a rare surname. The surname Wallack is habitual in Canada, where it is a rare surname, the United States, and New Zealand, where it is a very rare surname. Measured by absolute frequency, it is commonest in the United States, Canada, and India.
| VARIANT | COUNTRY |
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| Wallack | Canada, Brazil, India, United States, United Kingdom |
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william wallack English actor (b. 1760) |
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henry john wallack British actor and stage manager (b. 1790) |
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james william wallack Anglo-American actor and manager (1794-1864), US (b. 1794) |
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| elizabeth wallack English actress, GB (b. 1760) |
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james william wallack ii American actor (1818-1873), US (b. 1818) |
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lester wallack American actor (1820-1888), US (b. 1820) |
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| george wallack American actor and soldier (b. 1839) |
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| franz wallack Austrian civil engineer (1887-1966), AT (b. 1887) |
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| katie wallack American actress, US (b. 1953) |
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| melisa wallack screenwriter, film director, and former business manager, US (b. 1968) |
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| todd wallack journalist |
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| william wallack 20th-century actor |
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| lawrence wallack researcher (ORCID 0000-0002-5953-5849) |
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| elizabeth m wallack researcher |
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| june wallack Canadian voice actress, CA |
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