| Official Name: | Tardienta, Spain |
| Subdivision Name3: | Tardienta |
| Area Total Km2: | 90 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Coordinates: | 41.9833°N -32°W |
Tardienta is a municipality located in Huesca Province, Aragon, Spain. According to the 2004 census (INE), the municipality has a population of 1,072 inhabitants.
It is located on the Madrid–Huesca high-speed rail line.