Bardo of Mainz was an 11th-century German prelate who served as the Archbishop of Mainz from 1031 until his death in 1051. Born in Oppershofen around 980, he received his education at the Abbey of Fulda. Before his elevation to the archbishopric, he held leadership roles as the Abbot of Werden and the Abbot of Hersfeld. His career was closely linked to the Salian Emperors, and he played a significant role in the religious and political administration of the Holy Roman Empire.