The Leo Bible (Rome, Vatican, Bib. Apostolica, MS. Reg. gr. 1) is a Byzantine illuminated manuscript dated to the mid 10th century, making it one of the earliest surviving Byzantine Bibles. Though only one volume survives, a preface and an intact contents page tell us that the Bible originally contained both the Hebrew Bible and the New Testament. Due to its association with the Macedonian Renaissance it is often grouped along with the stylistically similar Paris Psalter and Joshua Roll.