The Notre Dame of Marbel University (NDMU) is a sectarian institution situated in the culturally pluralistic province of South Cotabato, in the island of Mindanao, Philippines. It started as Notre Dame of Marbel (NDM), a secondary level educational institution founded by the Oblates of Mary Immaculate (OMI) with the Religious of Virgin Mary (RVM) Sisters in 1946. It is the first high school to open in South Cotabato and Koronadal Valley. In 1950, the Oblate Fathers turned over the ownership and management of the Boys Department to the Marist Brothers of the schools (FMS). Two years later, the Dominican sisters assumed the direction of the Girls Department. The Marist Brothers, through