Surname Стефаниду (Stefanidou 
, Стефаниду 
) , globally, is quite a rare cognomen. The last name Стефаниду is characteristic of Greece, where it is quite a common surname, Cyprus, and Finland, where it is a rare surname. Not in comparison with a country's population, it is commonest in Greece, Cyprus, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Stefanidou | Greece, Sweden, Germany, Italy, Cyprus |
| Стефаниду | Russia |