Ust-Kamchatsky District (Russian: Усть-Камча́тский райо́н) is an administrative[1] and municipal[4] district (raion) of Kamchatka Krai, Russia, one of the eleven in the krai.

It is located in the east of the krai.

The area of the district is 40,837 square kilometers (15,767 sq mi).

[2] Its administrative center is the rural locality (a settlement) of Ust-Kamchatsk.

[7] The population of Ust-Kamchatsk accounts for 37.1% of the district's total population.