Cognomen Maciag (Maciag 
, Maciąg ) , in all the world, is quite a common family name. The family name Maciag is characteristic of Poland, where it is quite a common surname, France, where it is a rare surname, and Denmark. In absolute terms, it is the most numerous in Poland, the United States, and France. Likewise, Maciag is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Maciag | United Kingdom, Germany, Poland, United States, France |
| Maciąg | United Kingdom, Poland, United States |
| pawel maciag Polish journalist, PL (b. 1901) |
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| otto maciag (b. 1918) |
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| maria maciag Polish Righteous Among the Nations, PL |
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| anna maciag researcher ORCID ID = 0000-0001-6562-5640 |
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| timothy maciag Ph.D. University of Regina 2016 |
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| aleksander maciag researcher |
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| timothy maciag |
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| paulo cesar maciag |
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