| Almonacid de la Cuba Dam | |
| Dam Crosses: | Aguasvivas (Ebro basin) |
| Location: | Zaragoza province, Aragon, Spain |
| Dam Length: | 120m (390feet) |
| Dam Height: | 34m (112feet) |
| Dam Width Base: | 38m (125feet) |
| Opening: | 1st century |
| Coordinates: | 41.2748°N -0.789°W |
The Almonacid de la Cuba Dam is a Roman gravity dam in Almonacid de la Cuba, Zaragoza province, Aragon, Spain, dating to the 1st century AD.