A chaos deity is a deity or more often a figure or spirit in mythology associated with or being a personification of primordial chaos. The following is a list of chaos deities in various mythologies.

Africa and the Middle East

Afroasiatic Middle East

Arabian

• Falak
• Hinn and Binn

Canaanite

• Yam, god of the sea and primordial chaos
• Tannin (monster)^[1]

Egyptian

• Apep the ultimate evil of Egyptian mythology in snake form
• Isfet chaos, disorder, and injustice - opposed to Maat
• Nu (mythology) primordial waters
• Set (deity) was not originally evil, but developed into a hated figure thanks to the invading Hyksos who identified him with their chief god, fights Apep.

Hebrew

• Leviathan (is referred to as a reptilian aquatic animal in the Bible, but has also been used as an image of Satan).

Mesopotamian

• Tiamat

Western Eurasia

Celtic

• Fomorians – monstrous Irish sea-demons deposed by the Tuatha dé Danann

Norse-Germanic

• Midgard Serpent
• Nidhogg
• Surtr
• Ymir

Graeco-Roman

• Chaos (mythology), the "first thing that came into being" according to Hesiod
• Dionysus, in some cases thought to be a god of chaos
• Eris
• Hydra (mythology)
• Typhon

Western Asia

Anatolian - Hittite

• Illuyanka

Hindu-Vedic

• Vritra

Persian Zorostarian

• Angra Mainyu, Zoroastrian god of evil and opposed to Ahura Mazda, god of good

Manichaeism

• Prince of Darkness

Asia-Pacific / Oceania

• Amatsumikaboshi, Japanese

Native Americas

• Cipactli
• Juracán
• Tau (mythology)
• Unhcegila