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 | Japan, Italy, Malaysia, United States, India |
| Nassau | United States, India, Argentina, France, Brazil |
| ناسو | Syria, Iraq, Egypt |