Kambarsky District (; , Kambarka joros) is an administrative and municipal district (raion), one of the twenty-five in the Udmurt Republic, Russia. It is located in the southeast of the republic. The area of the district is . Its administrative center is the town of Kambarka. Population: 21,243 (2002 Census); The population of Kambarka accounts for 60.9% of the district's total population.