Cognomen اونى (Onni 
, اونى 
) , throughout the world, is quite a rare last name. The cognomen اونى is characteristic of Finland, where it is a rare surname, Honduras, and Estonia. Not in comparison with a country's population, it most frequently occurs in Bangladesh, Egypt, and Indonesia. Also, اونى is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Onni | Finland, Argentina, Bangladesh, Japan, Indonesia |
| اونى | Egypt |