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 | Moldova, Spain, Romania, Afghanistan, Italy |
| Nitsu | Poland, Bulgaria, Ethiopia, India, Japan |
| Ницу | Russia, Ukraine, Belarus |