Nungal, also known as Manungal and possibly Bēlet-balāṭi, was the Mesopotamian goddess of prisons, sometimes also associated with the underworld. She was worshiped especially in the Ur III period in cities such as Nippur, Lagash and Ur.

In Mesopotamian mythology, Ereshkigal was the goddess of Kur, the land of the dead or underworld in Sumerian mythology. In later myths, she was said to rule Irkalla alongside her husband Nergal. Sometimes her name is given as Irkalla, similar to the way the name Hades was used in Greek mythology for both the underworld and its ruler, and sometimes it is given as Ninkigal, lit. "Lady of the Great Earth".