| Llanos de Olivenza | |
| Native Name Lang: | es |
| Settlement Type: | Comarca |
| Coordinates: | 38.6819°N -7.1014°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Extremadura |
| Subdivision Type2: | Province |
| Subdivision Name2: | Badajoz |
| Seat Type: | Capital |
| Seat: | Olivenza |
| Parts Type: | Municipalities |
| Parts Style: | list |
| P1: | Alconchel, Almendral, Barcarrota, Cheles, Higuera de Vargas, Nogales, Olivenza, Táliga |
| Area Total Km2: | 1647 |
| Population Total: | 32792 |
| Population As Of: | 2015 |
| Population Density Km2: | auto |
| Blank Name Sec1: | Largest municipality |
| Blank Info Sec1: | Olivenza |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Area Code Type: | Dialing code |
Llanos de Olivenza is a comarca in the province of Badajoz in the autonomous community of Extremadura, western Spain. It borders with Portugal in the west.