in Islāmic mythology, a class of infernal jinn (spirits below the level of angels and devils) noted for their strength and cunning. An ifrit is an enormous winged creature of smoke, either male or female, who lives underground and frequents ruins. Ifrits live in a society structured along ancient Arab tribal lines, complete with kings, tribes, and clans. They generally marry one another, but they can also marry humans. While ordinary weapons and forces have no power over them, they are susceptible to magic, which humans can use to kill them or to capture and enslave them. As with the jinn, an ifrit may be either a believer or an unbeliever, good or evil, but he is most often depicted as a wicked and ruthless being.

The rare appearance of the term ifrit in the Qurʾān (the sacred scripture of Islām) and in Ḥadīth (eyewitness narratives recounting Muḥammad's words, actions, or approbations) is always in the phrase “the ifrit of the jinn” and probably means “rebellious.” The word subsequently came to refer to an entire class of formidable, rebellious beings, but, in the confused world of chthonic (underworld) spirits, it was difficult to differentiate one from another. The ifrit thus became virtually indistinguishable from the mārid, also a wicked and rebellious demon. See also jinnī (jinni).