Cognomen Νικολαϊδου (Νικολαϊδου 
) , in the entire world, is an extremely rare family name. The last name Νικολαϊδου is habitual in Southern Europe, particularly Greece, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Νικολαϊδου | Greece |
| μαίρη νικολαϊδου Greek actress, GR |
|