Last name Sapoun (Sapoun 
, Сапун 
) , around the world, is quite a rare family name. The surname Sapoun is habitual in Eastern Europe, particularly Belarus, where it is quite a rare surname, Ukraine, and Russia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sapoun | United States, France |
| Сапун | Kyrgyzstan, Russia, Belarus, Kazakhstan, Ukraine |