Last name Оюунцэцэг (Оюунцэцэг 
) , worldwide, is an extremely rare family name. The family name Оюунцэцэг is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Оюунцэцэг | Russia |
| янживын оюунцэцэг Mongolian actor, MN (b. 1962) |
|