The St. Mary's Cathedral (Indonesian: Katedral Santa Maria) also called Palangkaraya Cathedral is a Catholic Church located in the city of Palangka Raya (also written Palangkaraya) in the province of Central Kalimantan to the south of the island of Borneo in Indonesia. The temple follows the Roman or Latin rite and is the mother church of the Diocese of Palangkaraya (Dioecesis Palangkaraiensis or Keuskupan Palangkaraya) that was created in 1993 through the bull "Venerabiles Fratres" of Pope John Paul II. It is under the pastoral responsibility of Bishop Aloysius Maryadi Sutrisnaatmaka.