Saint Mutien-Marie Wiaux (Mucian Mary Wiaux; Mucian of Malonne) (20 March 1841 – 30 January 1917) was a Belgian member of the Brothers of Christian Schools. He was born Louis Wiaux, the third of six children, in French-speaking Belgium to a devout Catholic family. After joining the Christian Brothers, he took the religious name Mutien-Marie, "Mutien" being a reference to the early Roman martyr Mucian. He began the novitiate at Namur. Mutien-Marie was buried in Malonne. His fame began to grow after his death and miracles were attributed to him. His feast day is 30 January.