Ifrit, also spelled as efreet, afrit, and afreet, plural عفاريت ʿafārīt), is a powerful type of demon in Islamic culture. The ʿafārīt are often associated with the underworld and identified with the spirits of the dead, and have been compared to evil geniī loci in European culture. In Quran, hadith, and Mi'raj narrations the term is always followed by the phrase "among the jinn". In later folklore, they developed into independent entities, identified as powerful demons or spirits of the dead who sometimes inhabit desolate places such as ruins and temples. Their true habitat is the Jahannam or underworld.

A demon is a malevolent supernatural entity. Historically, belief in demons, or stories about demons, occurs in folklore, mythology, religion, and literature; these beliefs are reflected in media including comics, fiction, film, television, and video games. Belief in demons probably goes back to the Paleolithic age, stemming from humanity's fear of the unknown, the strange and the horrific. In ancient Near Eastern religions and in the Abrahamic religions, including early Judaism and ancient-medieval Christian demonology, a demon is considered a harmful spiritual entity that may cause demonic possession, calling for an exorcism. Large portions of Jewish demonology, a key influence on Christianity and Islam, originated from a later form of Zoroastrianism, and was transferred to Judaism during the Persian era.