Family name Matsuni (Matsuni 
) , across the world, is a rare surname. The cognomen Matsuni is habitual in Malaysia, where it is a rare surname, Indonesia, where it is a very rare surname, and China, where it is an extremely rare surname. Very seldom, Matsuni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Matsuni | Japan, China, Indonesia, South Africa, Malaysia |