| Official Name: | Almonacid de la Sierra |
| Subdivision Name3: | Almonacid de la Sierra |
| Area Total Km2: | 54 |
| Elevation M: | 598 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Pushpin Map: | Spain Aragon#Spain#Europe |
| Coordinates: | 41.4°N -20°W |
Almonacid de la Sierra (Aragonese: Almonecir de la Sierra) is a municipality located in the province of Zaragoza, Aragon, Spain. According to the 2004 census (INE), the municipality has a population of 894 inhabitants. It has a total area of 54 km squared.
This town is located near the Sierra de Algairén, Sistema Ibérico, in the comarca of Campo de Cariñena.