Ust-Tsilma (Russian: Усть-Ци́льма, Komi: Чилимдін, Ćilimdïn) 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.

[6] It is served by the Ust-Tsilma Airport.

Ust-Tsilma has a subarctic climate (Köppen climate classification Dfc).

Winters are very cold with average temperatures from −20.7 to −13.2 °C (−5.3 to 8.2 °F) in January, while summers are mild with average temperatures from +11.0 to +20.9 °C (51.8 to 69.6 °F).

Precipitation is moderate and is somewhat higher in summer than at other times of the year.