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 consists of 19 independent monasteries with houses or dependencies in 15 of the United States, Puerto Rico, and in six other countries on three continents.

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).

Please email us at webmaster@amcass.org about the website with any questions, comments, suggestions, or edits.



Upcoming Events

February 2-6, 2018

Annual Abbots’ Workshop at St. Joseph Abbey, St. Benedict, LA

May 30-June 2, 2018

Association of Benedictine Colleges and Universities at St. Anselm Abbey & College, Manchester, NH

June 14-23, 2018

Juniorate Conference at St. Anselm Abbey, Manchester, NH

June 16-17, 2018

Benedictine Youth Day, requested by Abbot Primate Gregory Polan, O.S.B, as preparation for the synod on youth: St. Anselm Abbey, Manchester, NH in conjunction with the juniorate conference

June 25-29, 2018

Benedictine Leadership Institute for lay educational leaders in secondary schools: St. Procopius Abbey and Benedictine University, Lisle, IL

July 5-9, 2018

Vocation Convocation at St. Mary’s Abbey, Morristown, NJ

July 18-21, 2018

Benedictine Formation Workshop at St. Mary’s Abbey, Morristown, NJ