Family name Ernesaks (Ernesaks 
) , in the entire world, is a very rare surname. The family name Ernesaks is habitual in Estonia, where it is quite a rare surname, Finland, where it is a rare surname, and Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
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| Ernesaks | Estonia, Canada, Brazil, United Kingdom, Finland |
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gustav ernesaks Estonian composer and choir conductor (1908-1993), EE (b. 1908) |
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| johannes ernesaks Estonian politician, EE (b. 1876) |
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| gustav ernesaks Estonian weightlifter, EE (b. 1896) |
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| voldemar ernesaks Estonian economist (1903-1989), EE (b. 1903) |
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| stella ernesaks (b. 1909) |
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| viive ernesaks (b. 1931) |
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