Family name Оганесян-Бух (Оганесян-Бух 
) , across the world, is an extremely rare cognomen. The last name Оганесян-Бух is habitual in Eastern Europe, particularly Ukraine, where it is an extremely rare surname. Parts of the name also exists independently as a last name Оганесян, and a last name Бух.
| VARIANT | COUNTRY |
|---|---|
| Оганесян-Бух | Ukraine |