Lenoks (otherwise known as Asiatic trout or Manchurian trout) are a genus, Brachymystax, of salmonid fishes native to Mongolia, Siberia, the far East of Russia, Northern China, the Sea of Japan and South Korea.
There are three species in this genus; Brachymystax lenok, Brachymystax savinovi, and Brachymystax tumensis.