Sosnovsky District (Russian: Сосно́вский райо́н) is an administrative and municipal district (raion), one of the twenty-seven in Chelyabinsk Oblast, Russia.

[1] It is located in the northern central part of the oblast.

The area of the district is 2,112 square kilometers (815 sq mi).

[2] Its administrative center is the rural locality (a selo) of Dolgoderevenskoye.

[6] The population of Dolgoderevenskoye accounts for 12.6% of the district's total population.