Ust-Tsilma (Russian: Усть-Цильма) is a rural locality (a selo) and the administrative center of Ust-Tsilemsky District of the Komi Republic, Russia, located where the Tsilma River enters the Pechora River. Population: 4,877 (2010 Census); 5,081 (2002 Census); 5,344 (1989 Census).