| Type: | municipality |
| Official Name: | Guadalaviar, Spain |
| Pushpin Map: | Spain |
| Pushpin Relief: | 1 |
| Pushpin Label Position: | none |
| Coordinates: | 40.3833°N -44°W |
| Area Total Km2: | 28.08 |
| Elevation M: | 1519 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
Guadalaviar is a municipality located in the province of Teruel, Aragon, Spain. According to the 2004 census (INE), the municipality has a population of 293 inhabitants.