Cognomen Dyoni (Dyoni 
) , in the entire world, is a very rare family name. The family name Dyoni is habitual in Sub-Saharan Africa, particularly South Africa, where it is a very rare surname. Likewise, Dyoni is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dyoni | South Africa, Brazil, Peru, India, United States |