Allium altaicum is a species of onion native to Asiatic Russia (Altay, Buryatiya, Zabaykalsky Krai, Irkutsk, Tuva, Amur Oblast), Mongolia, Kazakhstan and northern China (Inner Mongolia, Heilongjiang and Xinjiang).

Allium altaicum produces narrowly egg-shaped bulbs up to 4 cm in diameter. Scape is round in cross-section, up to 100 cm tall. Leaves are round, up to 50 cm long. Flowers are pale yellow, up to 20 mm across. Ovary is egg-shaped; stamens longer than the tepals.