Cognomen Greschner (Greschner 
) , in the world, is quite a rare family name. The surname Greschner is characteristic of Slovakia, where it is quite a rare surname, Germany, and Czechia, where it is a rare surname. In absolute terms, it most frequently occurs in Germany, Canada, and the United States.
| VARIANT | COUNTRY |
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| Greschner | Canada, Slovakia, Germany, United States, Czechia |
| alexius innozenz greschner SK (b. 1780) |
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| ewald greschner (b. 1941) |
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| ron greschner Canadian ice hockey player, CA (b. 1954) |
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| joseph m greschner researcher (ORCID 0000-0003-1997-9952) |
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| m. greschner researcher |
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