Last name Iyassu (Iyassu 
) , in the world, is a rare family name. The surname Iyassu is habitual in Sweden, where it is a rare surname, Ethiopia, where it is a very rare surname, and the United States. Likewise, Iyassu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iyassu | France, Sweden, United States, Ethiopia, Nigeria |
| amanuel iyassu Eritrean association football player, ER (b. 1981) |
|