 “Elias” is the name of an author which, in the course of a complicated history of textual transmission, has become associated with some manuscripts of late-antique commentaries on Aristotle and Porphyry. On the basis of a certain similarity in style and content, it is generally supposed that the works transmitted under the name of “Elias,” just like the works attributed to “David,” emerged from the school of Olympiodorus at Alexandria and that the author lived and worked there in the second half of the 6th century CE. However, good evidence that a Neoplatonic philosopher bearing the Christian monastic name “Elias” ever existed is in fact scant. In this article “Elias” is used to refer to the assumed author of the commentaries nowadays attributed to him. (See further below, section 3.)