About Us

Faith seeking understanding ... understanding making a difference

St. Mary’s Ecumenical Institute (EI) was founded in 1968 by St. Mary’s Seminary & University, America’s oldest Roman Catholic seminary, in cooperation with ecumenical leaders. St. Mary’s is accredited by the Association of Theological Schools and by the Middle States Association of Colleges and Schools. The Ecumenical Institute encourages people of all denominations to explore theological studies in a serious, open-minded, and supportive environment.

Our students are mostly working adults who are part-time learners following the ancient motto of “faith seeking understanding.” They pursue individual courses, one of several certificates, one of two master’s degrees, the MA in Theology or the MA in Christian Ministries, or an MDiv in partnership with Lancaster Theological Seminary. Classes are held mostly on weekday evenings and Saturdays. There are three terms per year: fall, winter, and summer. Tuition is very reasonable—the lowest in the region for accredited, graduate, theological education.

Our student body of women and men is both interdenominational and interracial, as is our excellent faculty. Nearly all of St. Mary’s Ecumenical Institute’s professors have earned doctorates, and a significant number are well-known published scholars. The faculty is drawn from neighboring academic and religious institutions as well as from St. Mary’s Seminary & University.

We hope you find our site interesting and informative, and we look forward to hearing from you! Please begin with our invitation.