Humbert of Maroilles was a 7th-century Frankish monk and missionary bishop who served as the first abbot of Maroilles Abbey. Born into a noble family in Mézières-sur-Oise, he initially moved away from monasticism to manage his family's inheritance. However, after traveling to Rome with Bishop Amandus, he dedicated himself to religious service. He eventually established a monastery in Maroilles, where he worked as a Benedictine leader until his death around 680.