| Official Name: | Alfoz de Quintanadueñas |
| Postal Code Type: | Postal code |
| Postal Code: | 09197 |
| Area Total Km2: | 41.51 |
| Elevation M: | 845 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Pushpin Map: | Spain Castile and León#Spain |
| Coordinates: | 41.65°N -3.5°W |
| Website: | http://www.alfozdequintanadueñas.es/ |
Alfoz de Quintanadueñas 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 1,300 inhabitants.
The Alfoz de Quintanadueñas is made up of five towns: Quintanadueñas (seat or capital), Arroyal, Marmellar de Arriba, Páramo del Arroyo and Villarmero.