Ust-Yazva (Russian: Усть-Язьва) is a rural locality (a settlement) and the administrative center of Ust-Yazvinskoye Rural Settlement, Krasnovishersky District, Perm Krai, Russia.

Ust-Yazva is located 37 km southwest of Krasnovishersk (the district's administrative centre) by road.

Danilov Lug is the nearest rural locality.

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