Family name Naotsune (Ии 
, Naotsune 
) , in all the world, is a rare surname. The family name Naotsune is habitual in Russia, where it is a rare surname, and Kazakhstan, where it is a very rare surname. Very seldom, Naotsune is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ии | Ukraine, Russia, Armenia, Kazakhstan |
| Naotsune | Brazil, United States |