Kvarkensky District (Russian: Кваркенский райо́н) is an administrative[1] and municipal[5] district (raion), one of the thirty-five in Orenburg Oblast, Russia.

The area of the district is 5,200 square kilometers (2,000 sq mi).

[citation needed] Its administrative center is the rural locality (a selo) of Kvarkeno.

[2] Population: 18,655 (2010 Census);[4] 23,525 (2002 Census);[7] 23,890 (1989 Soviet census).

[8] The population of Kvarkeno accounts for 21.0% of the district's total population.