Family name Niggi (Niggi 
) , in the entire world, is a very rare last name. The surname Niggi is habitual in Italy, where it is a very rare surname, Argentina, and France, where it is an extremely rare surname. In absolute terms, it is the most numerous in Italy, Argentina, and the United States. Likewise, Niggi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Niggi | Switzerland, Italy, United States, India, Argentina |