Cognomen Karathanasis (Karathanasis 
) , in all the world, is quite a rare surname. The family name Karathanasis is characteristic of Greece, where it is quite a common surname, Switzerland, where it is a rare surname, and Austria. Not in comparison with a country's population, it is commonest in Greece, the United States, and Switzerland.
| VARIANT | COUNTRY |
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| Karathanasis | Switzerland, Poland, Australia, United States, Greece |
| demetrios k. karathanasis ISNI: 0000 0000 1919 3077; http://viaf.org/viaf/45251865/ (b. 1901) |
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| georgios karathanasis association football player (b. 1971) |
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| vasileios karathanasis researcher (ORCID 0000-0002-6432-4018) |
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| christos karathanasis researcher (ORCID 0000-0002-1333-2341) |
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| efstathios karathanasis researcher (ORCID 0000-0001-7484-7552) |
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| nestoras karathanasis researcher |
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| c. karathanasis researcher, ORCID iD = 0000-0002-0642-5507 |
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Mr, Spiro, Alana, Athan, Chris, Cindy, Babis, Karen, Kosta, Panag, Sakis, Panos, Ritza, Georg, Lazos, Tasha, Tolis, Toula, Nadia, Nikol, Nikos, Peter, Makis, Maiki, Marie, Or, Dan, Gus, Jim, Vas, Mary, Alex, Arta, Arel, Akis, Kate, Pete, Jane, John, Theo, Nick, Niki, Nina, Evan, Ioan, Maria, Helen, and Fotis