Wessobrunn Abbey (Kloster Wessobrunn) was a Benedictine monastery near Weilheim in Bavaria, Germany.
It is celebrated as the home of the famous Wessobrunn Prayer and also of a Baroque school of stucco workers and plasterers in the 18th century.
The monastery was founded in about 753, and dedicated to Saint Peter, according to legend after Duke Tassilo III of Bavaria while hunting nearby had a vision of three springs, which his servant Wezzo duly discovered the next day. (The name means Wesso or Wezzo's spring(s)). The three springs are still to be seen, but there is otherwise no evidence of the truth of the story, and it is likely that the founders were a local noble family called Rott.
The first monks came from Niederaltaich Abbey under Ilsung, the first abbot. The church was dedicated to Saints Peter and Paul. During the rule of the second abbot, Adelmar (799–831), the monastery was transferred from the Diocese of Brixen to that of Augsburg.
In 788 Wessobrunn became a Carolingian Empire Imperial abbey (i.e., independent of other terrorial lordships and answerable only to the monarchy) In about 900 it became a property of the Bishop of Augsburg.
In 955 the abbey was destroyed by the Hungarians, on which occasion Abbot Thiente and six of his monks suffered martyrdom, while the remaining three fled to Andechs with the sacred relics. The site was then occupied by canons until 1065, when the provost Adalbero restored the Rule of St. Benedict and governed as abbot until his death in 1110. In the first year of his abbacy the monastic church was rebuilt and was dedicated by Bishop Embrico of Augsburg.