Krasnoarmeysky District () is an administrative and municipal district (raion), one of the thirty-eight in Saratov Oblast, Russia. It is located in the south of the oblast. The area of the district is . Its administrative center is the town of Krasnoarmeysk which is not administratively a part of the district). Population: 24,375 (2010 Census);
Within the framework of administrative divisions, Krasnoarmeysky District is one of the thirty-eight in the oblast. The town of Krasnoarmeysk serves as its administrative center, despite being incorporated separately as a town under oblast jurisdictionâÂÂan administrative unit with the status equal to that of the districts.
As a municipal division, the district is incorporated as Krasnoarmeysky Municipal District, with Krasnoarmeysk Town Under Oblast Jurisdiction being incorporated within it as Krasnoarmeysk Urban Settlement.