Around the globe, Nedelcu (Nedelcu 
, Неделко 
, Неделку ) is quite a rare mostly male, but uncommonly girly given name. The forename Nedelcu is habitual in Bulgaria, where it is quite a common male name, Romania, where it is quite a rare unisex name, and Afghanistan, where it is a rare masculine name. More prevalently, Nedelcu is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nedelcu | Spain, Italy, Bulgaria, Moldova, Romania |
| Неделко | Bulgaria, Kazakhstan, Russia, Ukraine |
| Неделку | Kazakhstan, Russia, Ukraine |