Tselinny District () is an administrative and municipal district (raion), one of the twenty-four in Kurgan Oblast, Russia. It is located in the south of the oblast. The area of the district is . Its administrative center is the rural locality (a selo) of Tselinnoye. Population: 23,058 (2002 Census); The population of Tselinnoye accounts for 29.5% of the district's total population.