Worldwide, Eftychios (Eftychios 
) is quite a common boy's forename. The forename Eftychios is characteristic of Greece, where it is quite a common boy's name, and Cyprus, where it is quite a rare boy's name. Also, Eftychios is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Eftychios | Greece, Cyprus, United States, United Kingdom, Germany |
| eftychios a pnevmatikakis researcher |
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| eftychios protopapadakis researcher |
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| eftychios frangedakis researcher (ORCID 0000-0002-3483-8464) |
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| eftychios dimitrios sifakis Ph.D. Stanford University 2007 |
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| eftychios lostoridis researcher |
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| eftychios siniorakis researcher |
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| eftychios a. pnevmatikakis |
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