Berg im Donaugau Abbey (in German Kloster Berg im Donaugau) was a house of the Benedictine Order located somewhere in the area of Berg im Gau in Bavaria in Germany. It was founded between 768 and 772 by Wolchanhard, a nobleman, as a private monastery for his family. Wolchanhard, previously a monk at Salzburg, was also the first abbot. It was dedicated to the Holy Saviour (Sankt Salvator). After the fall of Duke Tassilo III of Bavaria and the end of the Agilolfinger dynasty in 788, Wolchanhardt put the monastery under the protection of Charlemagne.