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

It is located in the west of the republic.

The area of the district is 1,883.7 square kilometers (727.3 sq mi).

[3] Its administrative center is the rural locality (a selo) of Selty.

[9] The population of Selty accounts for 46.4% of the district's total population.