Around the world, Διαμαντής (Diamantis 
, Diamandi , Διαμαντής ) is quite a common male given name. The first name Διαμαντής is habitual in Greece, where it is quite a common boy's name, Mexico, where it is a very rare unisex name, and the United States, where it is an extremely rare principally masculine, but very seldom girly name. Likewise, Διαμαντής is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Diamantis, Diamandi | Germany, Romania, Australia, United States, Greece |
| Διαμαντής | Greece |
| Diamandis | Germany, United Kingdom, Australia, United States, Greece |
Adam, Adamantios, Adamos, Αδαμάντιος, Адам, אדם, آدم, アダム, 亚当, and 亞當
| διαμαντής χορμόβας Greek independence fighter, 1788-1821, GR (b. 1788) |
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διαμαντής αξιώτης Greek poet, GR (b. 1942) |
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| διαμαντής διαμαντόπουλος Greek painter (1914-1995), GR (b. 1914) |
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| διαμαντής φλωράκης Greek author (1935- ), GR (b. 1935) |
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| διαμαντής παπαδόπουλος Greek politician, GR (b. 1956) |
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| διαμαντής παναγιωτόπουλος Greek anthropologist, archaeologist and art historian, GR (b. 1957) |
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| διαμαντής σταγγίδης Greek painter, GR (b. 1959) |
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| διαμαντής λιάμας Greek politician and economist, GR (b. 1969) |
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| διαμαντής διονυσίου Greek singer, GR (b. 1977) |
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| διαμαντής σωτηρόπουλος Greek painter, GR (b. 1978) |
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| διαμαντής διαμαντάκος Greek actor and translator, GR |
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| διαμαντής παπαδόπουλος cinematographer |
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| διαμαντής καλαφατιάδης Greek audio engineer, GR |
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| διαμαντής κάντζας Greek sportsperson, GR |
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| διαμάντης ή διαμαντής ζέρβας GR |
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