Archangels are the second-lowest rank of angel in the Christian hierarchy of angels, put forward by Pseudo-Dionysius the Areopagite in the 5th or 6th century in his book De Coelesti Hierarchia. The word "archangel" itself is usually associated with the Abrahamic religions, but beings that are very similar to archangels are found in a number of other religious traditions.

In Abrahamic religious traditions and some sects of other belief-systems like Hinduism and Buddhism, an angel is a heavenly supernatural or spiritual being. In monotheistic belief-systems, such beings are under service of the supreme deity.