Mél of Ardagh was a 5th-century Irish bishop and abbot who served as a missionary alongside his uncle, Saint Patrick. As the son of Darerca, a woman known for her many religious children, he accompanied his family to Ireland to assist in evangelization efforts. Following the establishment of a church at Ardagh, Patrick appointed him to lead the diocese. He was known for his manual labor, which allowed him to provide for the poor, and he also acted as a mentor to Saint Brigid of Kildare.