| Official Name: | Merindad de Río Ubierna |
| Seat: | Sotopalacios |
| Postal Code: | 09140 |
| Area Total Km2: | 274 |
| Elevation M: | 856 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Website: | http://merindadrioubierna.com/ |
Merindad de Río Ubierna is a municipality located in the province of Burgos, Castile and León, Spain. According to the 2004 census (INE), the municipality has a population of 1,389 inhabitants. Its seat is in Sotopalacios.