| Majaceite | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Spain |
| Subdivision Type3: | Region |
| Subdivision Name3: | Andalusia |
| Length: | 49km (30miles) |
| Source1: | Benamahoma |
| Source1 Location: | Cádiz (province), Spain |
| Mouth Location: | Junta de los Rios, Cadiz Province, Spain |
The Majaceite, also known as the Guadalcacín, is the main tributary of the river Guadalete in Andalusia, Spain. Most of its course runs through the national park of the Sierra de Grazalema. The Battle of Majaceite took place on its banks in 1836.