| Gaznata | |
| Mouth: | Alberche |
| Mouth Location: | El Burguillo Reservoir |
| Subdivision Type1: | Country |
| Subdivision Name1: | Spain |
| Length: | 27.2km (16.9miles) |
| Source1: | Fuente del Cuadrón |
| Source1 Location: | Prado Cuadrón |
| Source1 Coordinates: | 40.6211°N -4.4836°W |
| Mouth Coordinates: | 40.5936°N -4.5644°W |
| Basin Size: | 164.20 km2 |
| Extra: | Tagus Basin |
The Gaznata is a river of Spain located in the centre of the Iberian Peninsula, a left-bank tributary of the Alberche.
It springs out of the Fuente del Cuadrón, in the Prado Cuadrón area close to .[1] [2] Flowing southwards along a total length of 27.20 km, it empties in the Alberche, specifically into El Burguillo Reservoir, draining a catchment area of 164.20 km2.
The name Gaznata has been proposed to have a Berber origin, tentatively identified as "Wād-al-Zanāta", Zanāta referring to the Zenata berber tribe.