Allium ochotense is centered in the Amur River basin area, thus, it occurs in the Amur, Khabarovsk, Primorye regions of Siberia, and into Sakhalin and Kuril Islands within the Russian Far East. In China, the plant grows in Inner Mongolia and China (Heilongjiang, Jilin, Liaoning), Hebei, Henan, Anhui, Hubei, Zhejiang, Shaanxi, Shanxi, Gansu, and Sichuan). The range also includes Korea, in Ulleung Island and the high mountains (over ) in the Korean peninsula, including Baekdu Mountain, and Japan (Hokkaido and Honshu), in colonies from Hokkaido down to the Kinki area (Nara Prefecture), in coniferous and mixed forested wetlands in subalpine terrain. The plant's range extends nominally into the United States, but A. ochotense is only found natively growing on Attu Island, the westernmost island of the Aleutian archipelago. There are colonies on Unalaska Island, but they are thought to be introduced.