Surname غيان (Gyan 
, غيان 
) , around the globe, is a common last name. The family name غيان is habitual in Iraq, where it is a common surname, Ghana, where it is quite a common surname, and Myanmar, where it is quite a rare surname. More frequently, غيان is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gyan | Myanmar, Iraq, Nepal, India, Ghana |
| غيان | Iraq, Yemen |