Cognomen Grejdan (Grejdan 
) , around the globe, is a rare last name. The cognomen Grejdan is characteristic of Romania, where it is quite a rare surname, and Italy, where it is an extremely rare surname. Very seldom, Grejdan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Grejdan | Italy, Romania |
Iuli, Elena, Ioana, Mirela, Iulian, Ciprian, Gabriel, Ionut Daniel, George Ovidiu, and Cristian Razvan