Arkadaksky District (Russian: Аркада́кский райо́н) is an administrative[1] and municipal[5] district (raion), one of the thirty-eight in Saratov Oblast, Russia.

It is located in the west of the oblast.

The area of the district is 2,200 square kilometers (850 sq mi).

[3] Its administrative center is the town of Arkadak.

[9] The population of Arkadak accounts for 49.0% of the district's total population.