The American-Cassinese Congregation is a Catholic association of Benedictine monasteries founded in 1855. The monasteries of the congregation follow the monastic way of life as outlined by St. Benedict of Nursia in his early 6th century Rule of Saint Benedict. The congregation is one of 19 congregations in the Benedictine Confederation and includes 25 monasteries: 19 autonomous abbeys and 6 dependent priories, located across 15 states and Puerto Rico, as well as Brazil, Canada, Colombia, Mexico, and Taiwan.

The Benedictine Confederation of the Order of Saint Benedict is the international governing body of the Order of Saint Benedict.