Family name يوانس (Ioannis 
, يوانس 
, Ajawin 
) , in the entire world, is a widespread surname. The cognomen يوانس is habitual in Greece, where it is a prevalent surname, Cyprus, where it is quite a rare surname, and Sudan. Measured by absolute frequency, it is the most numerous in Greece, Sudan, and China. Likewise, يوانس is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ioannis | Greece, Germany, Italy, United States, Cyprus |
| يوانس | Sudan, Egypt |
| Ajawin | United Kingdom, United States, Sudan, Philippines |