This page gives details of the author abbreviations used in the Vetus Latina Repertorium. The system for indicating writings by Christian authors in the Vetus Latina edition normally consists of two parts: the first, beginning with one or more capital letters, indicates the author or source; the second, usually lower case (apart from proper nouns, which begin with a single capital), gives the work or subdivision where needed.

For example, TE ba is Tertullian's De baptismo, HIL Mt is Hilary of Poitiers' Commentary on Matthew and VICn-P Chr refers to the work De Iesu Christo Deo et homine by the fifth-century French poet Victorinus (not to be confused with Victorinus of Poetovio, whose siglum is VICn, or Victor of Capua, indicated by VIC-C). The author’s abbreviation is put in square brackets for works by a different author transmitted within that corpus (e.g. [AU] ep 72, which is actually Jerome’s response to Augustine’s Epistula 71 but included in the collection of Augustine's letters; among Jerome’s writings the same document is listed as HI ep 102). There are numerous anonymous works (AN), some of which refer to individual manuscripts. Pseudonymously-attributed works are preceded by PS- and listed after the author to which they are attributed. Translated works are identified by their Greek author where the translator is unknown (e.g. ORI for Origen, BAS for Basil), or under the works of the identified translator (e.g. RUF for Rufinus). Authors who have at some point featured in the list but have now been removed are marked by square brackets and not highlighted in bold.