Cognomen Διαμάντης (Διαμάντης 
) , all around the world, is an extremely rare family name. The family name Διαμάντης is characteristic of Southern Europe, particularly Greece, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Διαμάντης | Greece |
| αλκιβιάδης διαμάντης Greek politician (1893-1948), GR (b. 1893) |
|