Ust-Nera is an urban locality and the administrative center of the Oymyakonsky District in the Sakha Republic (Yakutia), Russia. It is situated approximately 870 kilometers (540 mi) northeast of Yakutsk, which serves as the republic's capital.
The settlement is notable for its location in one of the coldest permanently inhabited regions on Earth. According to the 2010 Census, the population of Ust-Nera was 6,463 residents.