Angels, in a variety of religions, are regarded as spirits. They are often depicted as messengers of God in the Hebrew and Christian Bibles and the Quran. The English word angel is derived from the Greek (aggelos), a translation of (mal'akh) in the Hebrew Bible (Tanakh); a similar term, (Malāīkah), is used in the Qur'an. The Hebrew and Greek words originally meant messenger, and depending on the context may refer either to a human messenger (possibly a prophet or priest, such as Malachi, "my messenger", but also for more mundane characters, as in the Greek superscription that the Book of Malachi was written "by the hand of his messenger" (ἀγγήλου)) or to a supernatural messenger, such as the "Mal'akh YHWH," who (depending on interpretation) is either a messenger from God, an aspect of God (such as the Logos), or God Himself as the messenger (the "theophanic angel.")

An angel is a supernatural being, present in many religions.