In Aztec mythology, Mictlan was the lowest level of the underworld, located far to the north. Warriors who died in battle and women who died in childbirth were the only people who did not go to Mictlan after death. They have to make a difficult journey from Earth to Mictlan, but are aided by the psychopomp, Xolotl.

The king of Mictlan was Mictlantecuhtli. The queen was Mictecacihuatl. Other deities in Mictlan included Ciucoatl (who commanded Mictlan spirits called Ciuteoteo), Acolmiztli, Chalmecacihuilt, Chalmecatl and Acolnahuacatl.