Family name Ницу (Nicu 
, Nitsu 
, Ницу 
) , all over the world, is a common last name. The family name Ницу is characteristic of Romania, where it is quite a common surname, Moldova, and Japan. Also, Ницу is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nicu | Romania, Italy, Spain, Moldova, Afghanistan |
| Nitsu | Japan, Ethiopia, Poland, Bulgaria, India |
| Ницу | Russia, Ukraine, Belarus |