Catholic Theological Union (CTU) is a private Roman Catholic graduate school of theology in Chicago, Illinois. It is one of the largest Catholic graduate schools of theology in the English speaking world and trains men and women for lay and ordained ministry within the Catholic Church.^[5] CTU is run and staffed by religious and lay men and women. International students constitute nearly one third of the student body.^[6]

It was founded in 1968, when three religious institutes united their separate theology programs to form one school. The institution has since gained the sponsorship of twenty-three religious communities.^[7]

• Steven P. Millies, Professor of Public Theology with expertise in religion and public life in the United States and religion and politics
• Antonio D. Sison, C.Pp.S., Professor of Systematic Theology with scholarly expertise in inculturation and theology and film studies
• Laurie Brink, O.P., Professor of New Testament Studies with expertise in Pauline studies, biblical spirituality, and the spirituality of Roman Catholic women religious
• Roger Schroeder, S.V.D., Professor of Intercultural Studies and Ministry with expertise in contextual theology, missiology, and the study of religious life
• Carmen M. Nanko-Fernández, Professor of Hispanic Theology and Ministry with scholarly expertise in Latin@ theologies as well as theology and béisbol
• C. Vanessa White, Associate Professor of Spirituality and Ministry with expertise in Black Catholic studies, African American spirituality, practical theology, and theologies of personal well-being and self-care.
• Richard Fragomeni, Professor of Liturgy and Preaching, with expertise in homiletics, preaching and presiding, and Roman Catholic hagiology
• Barbara E. Reid, O.P., current President of Catholic Theological Union and Professor of New Testament Studies with expertise in feminist exegesis
• Malka Z. Simkovich, Associate Professor of Biblical Literature and Languages with expertise in Second Temple Judaism and Rabbinic literature especially in the Intertestamental Period
• Syed Atif Rizwan, Assistant Professor of Islamic and Interreligious Studies with expertise in the history of early Islamic jurisprudence, hadith studies, comparative Christian-Muslim ethics, and contemporary criminal justice reform
• Robin Ryan, C.P. Professor of Systematic Theology with expertise in theologies of suffering and theologies of priesthood

• Stephen B. Bevans, S.V.D., scholar of mission and culture
• John Dominic Crossan, scholar of the New Testament
• Edward Foley, O.F.M. Cap., scholar of spirituality, liturgy, and music
• Mark R. Francis, C.S.V., former president of CTU and scholar of liturgy and culture
• John Jefferson Gros, F.S.C., scholar of Christian ecumenical studies (Adjunct Faculty Member)
• Leslie J. Hoppe, O.F.M., scholar of the Old Testament
• Daniel P. Horan, O.F.M., scholar of systematic theology and spirituality
• Kevin J. Madigan, scholar of church history
• John T. Pawlikowski, O.S.M., scholar of social ethics
• Donald Senior, C.P., former president of CTU and New Testament scholar
• Wayne Robert Teasdale, scholar and practitioner of interreligious dialogue (adjunct faculty member)
• Zachary Hayes, O.F.M., professor of systematic theology

• New Theology Review (NTR)
• Theophilus: The Student Journal of Catholic Theological Union