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 about the website with any questions, comments, suggestions, or edits.

Upcoming Events

February 22-26, 2019

Meeting of Benedictine Abbots and Prioresses at St. Bernard Abbey, Cullman, AL

June 16-21, 2019

53rd General Chapter at St. Anselm Abbey, Manchester, NH

July 22-26, 2019

Benedictine Development Symposium at Christ the King Priory, Schuyler, NE