St Otmar's Abbey, Uznach , Switzerland , is a monastery of the Congregation of Missionary Benedictines of Saint Ottilien. It was established in the wake of World War I to expand the Congregation's resources beyond Germany. To this day, the monastery continues to procure funds and send personnel to Benedictine missions in the Global South. The current superior of the monastic community is Fr Adelrich Staub, Prior Administrator.

Andreas Amrhein, the founder of the Missionary Benedictines, himself grew up in Switzerland, where support of the Catholic missions was widespread. Between the time Amrhein began recruiting vocations and the outbreak of World War I, twenty Swiss compatriots had joined his young mission society.