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 | Germany, Greece, Italy, Cyprus, United States |
| يوانس | Egypt, Sudan |
| Ajawin | Philippines, Sudan, United States, United Kingdom |