Samoylovsky District (Russian: Самойловский 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 2,500 square kilometers (970 sq mi).

[citation needed] Its administrative center is the urban locality (a work settlement) of Samoylovka.

[9] The population of Samoylovka accounts for 35.3% of the district's total population.