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, Bangladesh, Nigeria, Democratic Republic of the Congo, Indonesia |
| Ony | Bangladesh, Nigeria, Madagascar, India, Indonesia |
| Onie | Bangladesh, Nigeria, Democratic Republic of the Congo, India, Indonesia |
| Они | Russia, Kyrgyzstan |