Thubten Chodron, born Cheryl Greene, is an American Tibetan Buddhist nun, author, teacher, and the founder and abbess of Sravasti Abbey, the only Tibetan Buddhist training monastery for Western nuns and monks in the United States. Chodron is a central figure in the reinstatement of the Bhikshuni (tib. Gelongma) ordination of women. She is a student of the 14th Dalai Lama, Tsenzhab Serkong Rinpoche, Lama Thubten Yeshe, Thubten Zopa Rinpoche, and other Tibetan masters. She has published many books on Buddhist philosophy and meditation, and is the only nun who has co-authored a book with the Dalai Lama—Buddhism: One Teacher, Many Traditions.