The Vespasian Psalter (London, British Library, Cotton Vespasian A I) is an Anglo-Saxon illuminated psalter decorated in a partly Insular style produced in the second or third quarter of the 8th century. It contains an interlinear gloss in Old English which is the oldest extant English translation of any portion of the Bible. It was produced in southern England, perhaps in St. Augustine's Abbey or Christ Church, Canterbury or Minster-in-Thanet.
The psalter contains the Book of Psalms together with letters of St. Jerome, hymns and canticles. It was written in Latin on vellum, using a southern English Uncial script with Rustic Capital rubrics. There were additions made by a scribe named Eadui Basan in an English Carolingian minuscule. The English gloss was written in a Southumbrian pointed minuscule.
The codex is 235 by 180 mm. The text is written in an area of about 175 by 135 mm. There are 160 folios.