Mary Jo Iozzio, Ph.D., earned her doctorate in Systematic Theology with a focus on Moral Theology (1994), License in Sacred Theology-STL (2019), with a focus on disability from Boston College (2019), an MA in the History of Religions, Fordham University (1984); an MA in Biblical Studies, Providence College (1987); and a BA in History, Pennsylvania State University (1977).  

Mary Jo has been at the STM since 2013. She was Professor of Moral Theology at Barry University, Miami Shores, FL (1993-2013), and adjunct instructor at Fordham University, Providence College, and the University of Rhode Island. She was formed by both religious and secular education systems:  the Dominican Sisters of Newburgh, NY, who ran St. Mary School, and John F. Kennedy P.H.S. in Paterson, NJ. Her personal and professional life have been marked —happily she adds—by the Jesuits, Dominicans, and Benedictines (whose monks welcomed her into their daily life at the Abbaye du Mont Cesar/Abdij Keizersberg, Leuven, Belgium).

She has 3 monographs: Self-Determination and the Moral Act: A Study of the Contributions of Odon Lottin, O.S.B. (Peeters Press, 1995); Disability Ethics/Preferential Justice: A Catholic Perspective (Georgetown University Press, 2023); and Radical Dependence: A Theo-anthropological Ethic in the Key of Disability (Baylor University Press, 2025).

She is the Series Editor of Content and Context in Theological Ethics, published by Palgrave Macmillan; past Coordinator and Contributor to the The First (newsletter of the Catholic Theological Ethicists in the World Church); past Co-Editor of the Journal of the Society of Christian Ethics; guest editor of the Journal of Religion, Disability and Health of the Journal of Moral Theology. And she serves on the American Academy of Religion Committee on the Status of People with Disabilities in the Profession

Mary Jo lives in West Roxbury, MA with her companion beagle-mix dogs: Melrose and Merksy.