Cognomen Они (Oni 
, Ony 
, Onie ) , in all the world, is a widespread surname. The surname Они is habitual in Nigeria, where it is quite a common surname, Albania, and Japan. Measured by absolute frequency, it is the most numerous in Nigeria, Japan, and Bangladesh. Also, Они is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Oni | Japan, Indonesia, Nigeria, Bangladesh, Democratic Republic of the Congo |
| Ony | Indonesia, Nigeria, Madagascar, India, Bangladesh |
| Onie | Indonesia, Nigeria, India, Bangladesh, Democratic Republic of the Congo |
| Они | Kyrgyzstan, Russia |