Wettingen-Mehrerau Abbey is a Cistercian territorial abbey located at Mehrerau on the outskirts of Bregenz in Vorarlberg, Austria. Wettingen-Mehrerau Abbey is directly subordinate to the Holy See and thus forms no part of the Roman Catholic Archdiocese of Salzburg. The abbot of Wettingen-Mehrerau, however, is a member of the Austrian Bishops' Conference.