Victor of Tunnuna (in Latin Victor Tunnunensis) (died circa 570) was Bishop of the North African town of Tunnuna, a chronicler from Late Antiquity, and considered a martyr by Isidore of Seville.
What little information we have on his life is derived from entries in his own chronicle. Victor was a staunch supporter of the Three Chapters which had been condemned by Justinian's edict of 544, and on this account he was arrested. His first imprisonment was a monastery in Mandracium near Carthage, followed by exile to the Balearic Islands and finally transferred to Egypt to a monastery in Canopus. In 564/565 he and five other African bishops were summoned before Justin II and Patriarch Eutychius in Constantinople and ordered to submit to the Emperor's edict. When they refused to submit, they were imprisoned in different monasteries throughout Constantinople. Victor died about 569, most likely still confined at the monastery in Constantinople.
Victor is the fifth author and continuator of the chronicle, the Chronicon, started by Sextus Julius Africanus (c. 160 - 240), in the early third century was continued by Eusebius (,c. 260/5 - 339/40) Jerome (c. 347 - 420), and Prosper of Aquitaine (c. 390 - 455), spanning from the creation of the world to the end of the year 566, which Victor wrote while in confinement. Only the part extending from 444 to 566 is extant. It is of great historical value, dealing chiefly with the Eutychian heresy, the controversy about the Three Chapters, and provides details concerning the Arians and the invasion of the Vandals. In general, church matters receive more attention than other issues in this chronicle. It was continued to 590 by John of Biclaro, founder of the Abbey of Biclar in Visigothic Hispania on the Iberian Peninsula, comprising modern Spain and Portugal and followed at greater length by Isadore of Seville.through 616.