| Type: | Municipality |
| Official Name: | Monasterio de la Sierra |
| Postal Code: | 09613 |
| Area Total Km2: | 5 |
| Elevation M: | 1161 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Website: | http://www.monasteriodelasierra.es/ |
Monasterio de la Sierra is a municipality and town located in the province of Burgos, Castile and León, Spain. According to the 2004 census (INE), the municipality has a population of 43 inhabitants.