Marksovsky 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 town of Marks (which is not administratively a part of the district). Population: 33,719 (2010 Census);
Administrative and municipal status
Within the framework of administrative divisions, Marksovsky District is one of the thirty-eight in the oblast. The town of Marks serves as its administrative center, despite being incorporated separately as a town under oblast jurisdiction—an administrative unit with the status equal to that of the districts.
As a municipal division, the district is incorporated as Marksovsky Municipal District, with Marks Town Under Oblast Jurisdiction being incorporated within it as Marks Urban Settlement.