| Fuentidueña de Tajo | |
| Settlement Type: | Municipality |
| Seal Size: | 75px |
| Pushpin Map: | Spain |
| Pushpin Label Position: | above |
| Pushpin Map Caption: | Location in Spain |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Community of Madrid |
| Subdivision Type2: | Province |
| Subdivision Name2: | Madrid |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Las Vegas |
| Leader Title: | Mayor |
| Leader Name: | Aurora Rodríguez Cabezas |
| Unit Pref: | Imperial |
| Area Total Km2: | 60.6 |
| Population Density Km2: | auto |
| Population Blank1 Title: | Ethnicities |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Coordinates: | 40.1181°N -3.1603°W |
| Elevation M: | 562 |
| Postal Code Type: | Postal code |
| Postal Code: | 28597 |
Fuentidueña de Tajo is a municipality of the autonomous community of Madrid, central Spain. It belongs to the comarca of Las Vegas.
It was one of the settings for the 1937 movie The Spanish Earth.[1]