Westminster Abbey is a community of Benedictine monks in Mission, British Columbia, established in 1939 from the Abbey of Mount Angel, Oregon. The abbey is home to the Seminary of Christ the King and is a member of the Swiss American Congregation within the Benedictine Confederation.
The abbey's official name is the Abbey of Saint Joseph of Westminster; Saint Joseph is the abbey's patron saint. The abbey was designed by the firm of Gardiner, Thornton, Gathe and Associates.
The seminary was founded in 1931 by Archbishop William Mark Duke of the Archdiocese of Vancouver. Five monks, including Father Eugene Medved, later Prior and Abbot, were sent from Mount Angel Abbey, Oregon, to British Columbia in 1939 to found a priory and to take over the running of the Seminary of Christ the King, which was then located in Ladner, B.C..
The following year, the monks moved their new priory together with the seminary to Burnaby, near Vancouver, B.C., neighbouring New Westminster. It became a conventual (independent) priory in 1948. In 1953 the Holy See raised it to the status of an Abbey. Prior Eugene was elected as the first Abbot of the new abbey.
The same year, construction began on a new abbey, church, and seminary, designed by the Norwegian architect, Asbjørn Gåthe. The new location was on the outskirts of the town of Mission. The monks began to live on this site beginning in 1954; buildings were gradually added, culminating in the abbey church in 1982. The abbey is located on a hill northeast of the town centre, with a view up the Fraser River valley.