The study discusses the history and the contents of the former library of the Cistercian convent in Kirchheim am Ries (near Nördlingen, Bavaria). Research at the Oettingen-Wallerstein Library of the University of Augsburg into which the Kirchheim library was incorporated in 1831 has enabled the author to reconstruct 69% of the library stocks at the disposal of the convent. Part Two of the study lists these stocks in the form of a catalogue. Part One combines a statistical record of the library stock (manuscripts and prints from the 15th to the 18th centuries) with a description of its historical development from the foundation of the convent (1270) to its disbanding in the course of the secularization process (1802).