Fyodorovsky District () is an administrative and municipal district (raion), one of the thirty-eight in Saratov Oblast, Russia. It is located in the center of the oblast. The area of the district is . Its administrative center is the urban locality (a work settlement) of Mokrous. Population: 20,876 (2010 Census); The population of Mokrous accounts for 32.2% of the district's total population.