This chapter provides a complete survey of the reception of Quintilian in late Antiquity. A brief note on the general literature and research tools available for the study of this vast topic, and on the key testimonies from the fourth until the seventh century, highlighting Quintilian’s fame as teacher of rhetoric and author of the Institutio and the Declamationes, is followed by a discussion of the influence of the Institutio on Christian education and on Christian thought, notably on Jerome, Lactantius, Hilary of Poitiers, Tyconius, Orosius, and Cassiodorus. Quintilian’s importance for the history of grammar is difficult to determine, but similarities between the grammatical chapters of the Institutio and the grammatical treatises of late Antiquity suggest that there may have been some direct influence. Donatus never cites Quintilian, while other grammarians such as Priscian, Diomedes, and Rufinus occasionally mention him or clearly make use of the Institutio. The influence of the Institutio on the so-called Minor Latin Rhetoricians is difficult to prove, but it is clear that the summaries, compilations, specialized monographs, and commentaries which form the substance of the rhetorical tradition in late Antiquity define themselves in one way or another by their relation to the Institutio. There was also some influence of the Institutio on the encyclopaedists Martianus Capella, Cassiodorus, and Isidorus. It was also in late Antiquity that the collections of Major Declamations and Minor Declamations were ascribed to Quintilian.