Last name Νικολαϊδης (Νικολαϊδης 
) , throughout the world, is an extremely rare cognomen. The cognomen Νικολαϊδης is characteristic of Southern Europe, particularly Greece, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Νικολαϊδης | Greece |
| κώστας νικολαϊδης Greek playwright, GR |
|