Augustinerchorherrenstift, später Prämonstratenserstift Langenselbold, Augustinian monastery in Langenselbold, Germany.

The Augustinian canons foundation, later converted to a Premonstratensian monastery, is a complex of medieval stone buildings in Langenselbold. The structures display characteristic features of religious architecture from that historical period in the Main-Kinzig area.

The monastery was originally established as an Augustinian canons foundation and later underwent a major conversion to a Premonstratensian abbey. This transformation reflected broader religious changes taking place in the region during medieval times.

The monastery's name comes from Selbold, the old name of Langenselbold. Its abbots held archidiaconal authority over Gelnhausen and, when the citizens wanted to enlarge St. Peter's church, the abbot insisted on building the Marian church dedicated to the order's patron, erected between 1220 and 1238. Gelnhausen freed itself from the abbot's jurisdiction only in 1404.

The remaining structures of the former monastery are located within Langenselbold town center and can be reached on foot through regular streets. Visitors should expect that only portions of the original complex remain visible and have been incorporated into the modern urban layout.

When the last abbot, Konrad Jäger, gave up the monastery in 1543, he broke the convent seal and handed one half each to Count Anton of Isenburg and the mayor of Gelnhausen. Jäger retired to Gelnhausen with a pension of 100 guilders and died there in 1572; the ten remaining canons received 1,200 guilders between them.