Audomar, also known as Omer, was a 7th-century Benedictine monk and the Catholic bishop of Thérouanne. Born into a noble family in the Frankish realm of Neustria around the turn of the 7th century, he studied the Scriptures at the abbey of Luxeuil. He was appointed to lead the diocese of Thérouanne in 637, where he worked to revitalize the Christian faith among the Morini people through missionary efforts and the establishment of new religious centers.