Around the globe, Athanasios (Athanasios 
, Αθανάσιος , Афанасиос 
) is a widespread male forename. The forename Athanasios is characteristic of Greece, where it is a prevalent masculine 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. Likewise, Athanasios is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Athanasios | Cyprus, United States, United Kingdom, Germany, Greece |
| Αθανάσιος | Greece |
| Афанасиос | Ukraine, Russia |
Afanasij, Afanassi, Afanasy, Apanas, Atanas, Atanasije, Atanasio, Atanazy, Atanáz, Athanase, Athanasis, Athanasius, Nasos, Sakis, Thanasakis, Thanasis, Thanasos, Thanasoulas, Thanos, Thasos, Αθανάσης, Αθανασίου, Θάνος, Θάσος, Θανάσης, Νάσος, Σάκης, Апанас, Атаназий, Атанас, Атанасие, Атанасиос, Атанасій, Атханасиос, Афанас, Афанасий, Афанасиус, Афанасі, Афанасій, Афоня, Опанас, Панас, and Танасий
| i. athanasios Patriarch of Constantinople (1289–1293 and 1303 –1309), TR (b. 1230) |
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| athanasios chalkeopoulos (b. 1407) |
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| athanasios iv de constantinople Ecumenical Patriarch of Constantinople (b. 1650) |
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| athanasios komnēnos hypsēlantēs (b. 1711) |
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| athanasios xodilos (b. 1780) |
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| athanasios polemis GR (b. 1826) |
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| athanasios petridēs (b. 1830) |
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| athanasios papaioannou Greek priest, GR (b. 1850) |
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| athanasios ch boutouras born:1850|died:1925|; Mpoútouras, Athanásios Ch.; Buturas, Athanasios Ch.; Mpoútouras, Athanásios Ch., ....-1925; Buturas, Athanasius. (b. 1850) |
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| athanasios panagiotou GR (b. 1848) |
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| athanasios karagiannidēs (b. 1868) |
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| athanasios piperas TR (b. 1876) |
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athanasios papas TR (b. 1936) |
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| athanasios barakas Paralympic athlete of Greece (b. 1901) |
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athanasios angelou Greek philologist (b. 1951) |
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