Family name ناسو (Naso 
, Nasu , Nassau 
) , across the world, is a common cognomen. The surname ناسو is habitual in Luxembourg, where it is quite a common surname, Bahamas, and Italy, where it is quite a rare surname. In absolute terms, this name is the most popular in Italy, India, and Japan. Also, ناسو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nasu, Naso | United States, Japan, Malaysia, India, Italy |
| Nassau | Argentina, France, United States, Brazil, India |
| ناسو | Egypt, Iraq, Syria |