This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
Tengrist Deities gathers four powers of the historical Turkic and Mongolic peoples of Central Asia and the steppe, arranged around a single sky centred cosmology that also reaches into the wider Siberian shamanic world.
Tengri is the sky god at the centre of the system, understood as the supreme, eternal blue sky itself and the source of the ruling khan's authority to govern. Tengrism, the modern name for this belief system, survives today as both a living folk practice in parts of Central Asia and Siberia and a modern revival movement. Umay is a mother and fertility goddess associated with childbirth, children and the hearth, standing beneath Tengri alongside the earth water spirit Yer-Sug as one of the principal subordinate powers of the steppe pantheon.
Erlik and Ulgen form the system's other axis, ruling death and benevolence in structural opposition to one another. Erlik is the lord of the underworld and of death across Turkic and Mongolic mythology and the wider Siberian shamanic world, ruling the realm beneath the earth against Tengri's sky, and is one of the few figures shared by name and function across multiple Central Asian and Siberian traditions rather than belonging to a single people. Ulgen, Bai-Ulgen, is a benevolent sky and creator god of the Altai Turkic and wider South Siberian shamanic tradition, understood as the source of good in the world and the counterpart to Erlik's rule of the underworld, addressed directly by shamans in ritual ascent to the highest levels of the sky.