Chac

Chac can refer to:


 * Chaac the Maya civilization rain god
 * Chac: Dios de la lluvia, a 1975 film in the Maya language
 * Red in the Yucatec Maya language
 * Clonliffe Harriers
 * Cannon Hill Anglican College
 * ChAc, Chorea acanthocytosis, a rare hereditary disease
 * chac, assistant to a priest in Maya society