Archabbot Boniface Wimmer Assumption Abbey Saint Procopius Abbey Newark Abbey Belmont Abbey Saint Leo Abbey Saint Anselm Abbey Saint John's Abbey Saint Benedict's Abbey Saint Vincent Archabbey

Founded 1855, the American-Cassinese Congregation is a Catholic association of Benedictine monasteries.

The Congregation includes 25 monasteries; 19 are autonomous monasteries and 6 are dependent priories. Our monasteries are located in 15 of the United States, Puerto Rico, Brazil, Canada, Colombia, Mexico and Taiwan.

Abbot Boniface Wimmer OSB, founder of Saint Vincent Archabbey in Latrobe, Pennsylvania, created the Congregation. Pope Pius IX erected it as a monastic congregation under the patronage of the Holy Guardian Angels.

Our monasteries follow the Rule written by Saint Benedict of Nursia (480-547).

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Upcoming Events

Junior Formation Program

July 15-24, 2024

The annual Junior Formation Program will be held on July 15 – 24 (July 15& 24 as travel days) at Saint John’s Abbey in Collegeville, MN. The theme of the program is Synodality and Eucharistic Revival: What do these contemporary movements mean for Benedictine monks? The instructor sin the program include Dr. Kristin Colberg, Ph.D., Professor of systematics at Saint John’s University/ School of Theology and Seminary and member of the Vatican theological commission assisting the Synod of Bishops; Fr. Anthony Ruff, O.S.B., Ph.D., Professor of liturgy and liturgical music at Saint John’s University / School of Theology and Seminary; Fr. Columba Stewart, O.S.B., Ph.D., Director of the Hill Museum and Manuscript Library (HMML) and Professor of Monastic Studies at Saint John’s University / School of Theology and Seminary; and Br. David Paul Lange, O.S.B., M.F.A., M.Min, Vocation Director of Saint John’s Abbey. Transportation is available to Collegeville is available for participants e flying into Minneapolis-St Paul International Airport (MSP) or arriving by train at the Amtrak Train Station in Saint Cloud (SCD). View the registration form which is due May 1, 2024.

Congress of Abbots 2024 - Save the Date

September 10-19, 2024

Abbot Primate Gregory Polan, O.S.B. has announced the dates of the Congress of Abbots at Sant'Anselmo in Rome to be on September 10-19, 2024 inclusive (with September 9 and 20 as travel days). The Congress will also include the election of the Abbot Primate. The Synod of Abbots President will finalize the schedule and program when they meet on August 27 through September 3, 2023. For more information at this time, contact the curia of the Abbot Primate: For more information on registration, accommodations, etc:

Benedictine Priors

November 6-9, 2024

The annual meeting of Benedictine Priors will be held November 6-9, 2024 at St. Mary’s Abbey in Morristown, N.J.. Abbot Joel Macul, O.S.B. from St. Paul’s Abbey in Newton, N.J. will be the presenter. View the invitation and information on registration. Priors from all monastic congregations are welcome!

Benedictine Abbots

February 21-25, 2025

The next meeting of Benedictine Abbots will be held on February 21-25, 2025 at St. Joseph’s Abbey in St. Benedict, LA. The presenter will be Father Frank Donio, S.A.C., D.Min., Executive Director for the Conference of Major Superiors of Men. Details on the schedule and registration will be forthcoming. Save the date!