The Refugio de Fauna Silvestre de la Laguna de Sariñena (in Aragonese Refuchio de Fauna Silvestre d’a Lacuna de Sarinyena ) is a wildlife refuge located in Los Monegros in the south of the province of Huesca. The refuge, which has an area of 604 hectares was declared as a protected natural area for the first time on April 4 1995. It is located within the municipality of Sariñena between the basins of the Alcanadre and Flumen rivers. In 2001, the natural space was also declared a Special Protection Area for Birds (ZEPA) together with the other nearby lagoon of the Balsa de la Estación.
The Sariñena lagoon is endorheic meaning that its waters have a very high concentration of salts.