| Orellana de la Sierra | |
| Pushpin Map: | Spain Extremadura |
| Pushpin Map Caption: | Location of Orellana de la Sierra within Extremadura |
| Coordinates: | 39.0308°N -5.4978°W |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Autonomous Community |
| Subdivision Type2: | Province |
| Subdivision Name1: | Extremadura |
| Subdivision Name2: | Badajoz |
| Leader Title: | Mayor |
| Leader Name: | Juan Manuel Sánchez Sánchez (PP) |
| Area Total Km2: | 16.7 |
| Elevation M: | 403 |
| Population Density Km2: | auto |
| Postal Code Type: | Postal code |
| Postal Code: | 06750 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
Orellana de la Sierra is a municipality in the province of Badajoz, Extremadura, Spain. It has a population of 243 and an area of 16.7 km2.