| Official Name: | Donji Orovac |
| Settlement Type: | Village |
| Pushpin Map: | Bosnia and Herzegovina |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | Bosnia and Herzegovina |
| Subdivision Type1: | Entity |
| Subdivision Name1: | Republika Srpska |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Trebinje |
| Unit Pref: | Imperial |
| Area Total Km2: | 3.5 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 42.6797°N 18.4833°W |
| Elevation M: | 640 |
| Postal Code Type: | Postal code |
| Postal Code: | 89208 |
| Area Code: | +387 59 |
Donji Orovac (Serbian: Доњи Оровац) is a village in the municipality of Trebinje, Republika Srpska, Bosnia and Herzegovina.[1]