In the world, Афанасиос (Athanasios 
, Athanassios 
, Афанасиос 
) is a widespread boy's forename. The given name Афанасиос is characteristic of Greece, where it is a prevalent male name, Cyprus, where it is quite a rare masculine name, and Germany. Measured by absolute frequency, this name is the most popular in Greece, Germany, and the United States. Also, Афанасиос is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Athanasios | Germany, Cyprus, United Kingdom, United States, Greece |
| Athanassios | Germany, United Kingdom, South Africa, United States, Greece |
| Афанасиос | Russia, Ukraine |
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