Debyossky District (Russian: Дебёсский райо́н; Udmurt: Дэбес ёрос, Debes joros) is an administrative[1] and municipal[6] district (raion), one of the twenty-five in the Udmurt Republic, Russia.

The area of the district is 1,033 square kilometers (399 sq mi).

[4] The Cheptsa River flows through the district from east to west.

Others rivers of significance include the Ita, the Pykhta, the Medlo, the Il, the Irymka, and others.

Ethnically, the population of the district consists mostly of the Udmurt people (79%) and Russians (19.7)%.