Khenpo Gangshar Wangpo (b. 1925-?) was a highly respected lama in Eastern Tibet and one of the primary teachers of Chögyam Trungpa Rinpoche (the 11th Trungpa tulku) and the 9th Thrangu Rinpoche. Khenpo Gangshar was trained in Shechen Monastery, a monastic center established in the end of the seventeenth century and part of the Mindröling lineage within the Nyingma tradition of Tibetan Buddhism.