| Official Name: | Abajas |
| Settlement Type: | Municipality and town |
| Pushpin Map: | Spain Castile and León#Spain |
| Postal Code Type: | Postal code |
| Postal Code: | 09141 |
| Area Total Km2: | 35.07 |
| Elevation M: | 839 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Coordinates: | 42.6233°N -3.5678°W |
| Website: | http://www.abajas.es/ |
Abajas 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 41 inhabitants.