Rosemary Radford Ruether (born November 2, 1936) is an American feminist scholar and Catholic theologian.
Ruether is an advocate of women's ordination, a movement among Catholic religious persons who affirm women's capacity to serve as priests, despite official sanction. Since 1985 Ruether has served as a board member for the pro-choice group "Catholics for Choice" (CFC).
Ruether was born in 1936 in St. Paul, Minnesota, to a Roman Catholic mother and Episcopal father. She has reportedly described her upbringing as free-thinking and humanistic as opposed to oppressive. Ruether's father died when she was 12 and afterwards Ruether and her mother moved to California.
She is married to the political scientist Herman Ruether. They have three children and live in California.
Ruether holds a B.A. in Philosophy from Scripps College (1958), an M.A. in Ancient History (1960) and a Ph.D. in Classics and Patristics (1965) from Claremont Graduate School in Claremont, California.
She is Visiting Professor of Religion and Feminist Theology at Claremont School of Theology and Claremont Graduate University. Her first appointment was as professor at Howard University in Washington D.C. from 1965 to 1975. She was Carpenter Professor of Feminist Theology at the Pacific School of Religion and Graduate Theological Union, and retired from her long-term post as Georgia Harkness Professor of Applied Theology at the Garrett-Evangelical Theological Seminary. Ruether is the author of 36 books and over 600 articles on feminism, eco-feminism the Bible and Christianity.