In the world, Efstathiou (Efstathiou 
, Ευσταθίου ) is a very rare male first name. The forename Efstathiou is habitual in Southern Europe, particularly Greece, where it is a rare masculine name. Much more prevalently, Efstathiou is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Efstathiou | Greece, Cyprus, United States, United Kingdom, Germany |
| Ευσταθίου | Greece |
| adamos efstathiou Cypriot footballer, CY (b. 1986) |
|