The Anyuy (Russian: река Аню́й), also known as Onyuy (Онюй) or Dondon (Дондон) is a river in the Khabarovsk Krai in Russia. It is a right tributary of the Amur. It originates on slope of Tordoki Yani in the Sikhote-Alin mountain range, and falls into the Amur between Khabarovsk and Komsomolsk-on-Amur.
The length of the Anyuy is 393 kilometres. The area of its basin is 12,700 square kilometres. The Manoma is a main tributary of the Anyuy.
