Jadis is the name of the White Witch in C. S. Lewis's Narnia Chronicles.

Jadis may also refer to: Jadis (band), British neo-progressive rock group Jadis, Iran Jadis Township, Roseau County, Minnesota, a township in Minnesota, United States Jadis (The Walking Dead), a character on the television series The Walking Dead Jordan Antiquities Database and Information System (JADIS), computer database of archaeological sites in Jordan Jadis, a producer of High-end audio tube amplifiers (Villedubert, France)

People with the surname Jadis Charles Newland Godfrey Jadis (1730–1788), Canadian naval officer and merchant