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Cognomen Giannos (Giannos
, Γιάννος) , around the globe, is quite a rare surname. The family name Giannos is characteristic of Greece, where it is quite a rare surname, Cyprus, and Australia, where it is a rare surname. Measured by absolute frequency, it is the most numerous in Greece, the United States, and Australia. Also, Giannos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Giannos | Canada, Greece, Australia, Cyprus, United States |