The Ada Gospels (Trier, Stadtbibliothek, Codex 22) is a late eighth century or early ninth century Carolingian gospel book in the Stadtbibliothek, Trier, Germany.
The Ada Gospels are one of a group of manuscript illuminations by a circle of scriptoria that represent what modern scholars call the "Ada School".
The illuminations show Insular, Italian and Byzantine influences.
The Evangelist portraits show a firm grasp of Classical style typical of the Carolingian Renaissance.
In 1499 the codex was given a rich sculpted gold binding that includes the Late Antique Eagle Cameo displaying the family of Emperor Constantine.