Guadiamar
General data
- Name: Guadiamar
- Water system: Guadalquivir
- Water type: River
- Progression: Guadalquivir -> Atlantic Ocean -> Planet Earth
- Climates: Subtropical
- Continents: Europe
- Countries: Spain
The Guadiamar is a river of Andalusia, Spain, and a tributary of the Guadalquivir. Its course runs entirely within the Province of Seville, flowing from Sierra Morena through the eastern border of DoƱana National Park. It is approximately 160 kilometers long.