The New Siberian Islands are an archipelago in the Arctic Ocean between the Laptev Sea and the East Siberian Sea. The archipelago comprises three groups of islands: the Anzhu Islands, the De Long Islands and the Lyakhovsky Islands.
Yakov Permyakov was the first to record the existence of the islands during his 1712 expedition from the Lena River to the Kolyma River. Permyakov discovered the island now known as the Great Lyakhovsky Island. Between 1821 and1823, Pyotr Anjou explored the other part of the archipelago, later named after him, in depth. In 1879-1881, the De Long Islands were discovered by American explorer George W. De Long. Some remote islands of the archipelago were discovered in the 20th century.