Surname Iwari (Iwari 
) , worldwide, is a rare family name. The family name Iwari is characteristic of the Democratic Republic of the Congo, where it is a rare surname, Indonesia, where it is a very rare surname, and Nigeria. More prevalently, Iwari is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iwari | Indonesia, Democratic Republic of the Congo, Nigeria, Japan, China |