John VIII (Serbian: Ivan VIII; in Italian, Giovanni Bruni) (died 7 October 1571) served as an archbishop of Antivari in the mid-16th century. Originally from Ulcinj (present-day Montenegro), Pope Julius II appointed John as Archbishop of Antivari (Bar) in 1551 because of his rare virtues and executive abilities. On 7 October 1571, during the Battle of Lepanto, some sources claim that the Turks had Archbishop John VIII (Giovanni Bruni) decapitated. Another source states that Christians executed him, mistaking him for a Turk.