Surname Seniuk (Seniuk 
) , throughout the world, is a rare last name. The last name Seniuk is habitual in Canada, where it is a rare surname, Poland, and Israel. Measured by absolute frequency, it is commonest in Canada, the United States, and Brazil. Likewise, Seniuk is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Seniuk | Canada, Brazil, Poland, United States, Germany |
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anna seniuk Polish actress, PL (b. 1942) |
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| holly a. seniuk psychologist |
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| wojciech seniuk Polish cardiologist, PL |
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| patrick seniuk researcher ORCID ID = 0000-0002-6141-8537 |
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| daniel seniuk German actor, DE (b. 1982) |
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| józef seniuk UA |
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| lars seniuk DE (b. 1989) |
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