Maha Ghosananda (full title Samdech Preah Maha Ghosananda - Khmer: សម្តេចព្រះមហាឃោសានន្ទ; Pali: Mahāghosānanda; May 23, 1913 – March 12, 2007) was a highly revered Cambodian Buddhist monk in the Theravada tradition, who served as the Patriarch (Sangharaja) of Cambodian Buddhism during the Khmer Rouge period and post-communist transition period of Cambodian history. His Pali monastic name, 'Mahā Ghosānanda', means "great joyful proclaimer". He was well known in Cambodia for his annual peace marches.