| Official Name: | Guadahortuna |
| Settlement Type: | Municipality |
| Motto: | "Encrucijada de caminos" (Spanish for, "A cross of paths") |
| Pushpin Map1: | Spain |
| Pushpin Label Position1: | Location of Guadahortuna within Spain |
| Pushpin Map Caption1: | Location of Guadahortuna |
| Coordinates: | 37.5581°N -3.3992°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Autonomous Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Granada |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Los Montes |
| Leader Party: | IU |
| Leader Title: | Mayor |
| Leader Name: | Juan José García Maza |
| Area Total Km2: | 121.24 |
| Elevation Footnotes: | (AMSL) |
| Elevation M: | 952 |
| Population Density Km2: | auto |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 18560 |
| Area Code: | +34 (Spain) + (Granada) |
Guadahortuna is a municipality of the province of Granada, in the autonomous community of Andalusia, Spain.
Guadahortuna has been populated since prehistoric times.
During Moorish Al-Andalus the municipality got its name, which means "River of fortune". During this period of time, it served as a border zone where Christian troops would enter Moorish territory in order to harass its inhabitants.
In 1486, after the Christian victory over the Moors, queen Isabella I of Castile repopulated the municipality with Christians.
In 1492, Guadahortuna became part of the city of Granada until 1557, when the municipality bought its independence with money from all its inhabitants.
Guadahortuna is bounded by the province of Jaén to the north, the municipality Alamedilla to the east, the municipalities Torre-Cardela and Píñar to the south and the municipalities Montejícar and Iznalloz to the west.
Guadahortuna is located on the Northeast of the province of Granada. Its highest mountain is Torrecilla's Hill with a height of 1.227 metres. It is located in the area known as La Atalaya. Other important mountains are Altos del Navazuelo, Vergara, Arrieros' Hill and Vertientes' Hill.
The municipality is located in Guadahortuna's valley.
Guadahortuna's river has its source in Montejícar. It passes through Montejícar, Guadahortuna, Alamedilla, Alicún de Ortega, Dehesas de Guadix and eventually it flows into Guadiana Menor river. From its source to its mouth, it travels 52 km.