Tiksi is an urban locality located in the Sakha Republic, Russia. It serves as the administrative center of the Bulunsky District and is situated on the shore of the Buor-Khaya Gulf of the Laptev Sea, southeast of the Lena River delta.
According to the 2010 census, the population of Tiksi was 5,063. The settlement is characterized by its geographical position within the Arctic region of Siberia.