The Pontifical Gregorian University (Italian: Pontificia Università Gregoriana; also known as the Gregorianum, or the PUG, or Greg) is a pontifical university located in Rome, Italy. It was originally a part of the Roman College founded in 1551 by Saint Ignatius of Loyola, and included all grades of schooling. The university division of philosophy and theology of the Roman College was given Papal approval in 1556, making it the first university founded by the Society of Jesus (Jesuits). In 1584 the Roman College was given a grandiose new home by Pope Gregory XIII, after whom it was renamed. It was already making its mark not only in sacred but also in natural science.
Today, the school has about 3,800 students from more than 150 countries. It discontinued, in the late 1960s/early 1970s, the use of Latin as the principal language of lecturers and examiners. Most students are priests, seminarians, and members of religious orders. After the Second Vatican Council, the first women to earn doctoral degrees at the university were Sandra Schneiders, I.H.M., and Mary Milligan, R.S.H.M. Both became authorities in New Testament Theology and Christian Spirituality.
Most professors are of Jesuits. In recent years, however, there has been an increase in laity in both the faculty and student body; today, lay men and women represent about 30% of the student body.
Since the Gregorian is a pontifical university, the Holy See accredits its curriculum, and its degrees have full effect in canon law. However, its licentiates in philosophy and theology are conferred by some Jesuit universities worldwide, entitling recipients to teach in major seminaries.
The university maintains faculties in theology, canon law, philosophy, history and cultural patrimony of the Church, missiology and social sciences. In addition, it has institutes of spirituality and psychology. Other programs of study include Jewish studies, formation for Formators for the Priesthood and Consecrated life, Ignatian spirituality, dialogue between faith and culture, and interreligious studies.