Cognomen Bietz (Bietz 
) , in the world, is quite a rare surname. The family name Bietz is characteristic of Germany, where it is a rare surname, Canada, and the United States.
| VARIANT | COUNTRY |
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| Bietz | Spain, Canada, France, United States, Germany |
| elmer a. bietz American politician, US (b. 1934) |
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| hartmut bietz German composer, DE (b. 1942) |
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| wolfgang bietz DE (b. 1942) |
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| matthew bietz researcher ORCID ID = 0000-0002-7782-3887 |
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| carl bietz |
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