In Babylonian mythology, the Asakku (Sumerian Asag) were one type of Mesopotamian evil spirits and monsters, classed with good spirits as Utukku. Asakku demons attack and kill human beings, especially by means of head fevers. They are mentioned in poetical enumerations of diseases and are named for Asag, a monstrous demon whom the god Ninurta/Ningirsu defeated using the mystic mace Sharur. Other types of demon include the Edimmu.

In Babylonian mythology, the Asakku (Sumerian Asag) were one type of Mesopotamian evil spirits and monsters, classed with good spirits as Utukku. Asakku demons attack and kill human beings, especially by means of head fevers. They are mentioned in poetical enumerations of diseases and are named for Asag, a monstrous demon whom the god Ninurta/Ningirsu defeated using the mystic mace Sharur. Other types of demon include the Edimmu.