Schloss Marktoberdorf, Former prince-bishops' castle in Marktoberdorf, Bavaria, Germany.

Schloss Marktoberdorf is a former prince-bishop's palace on the eastern edge of Marktoberdorf, next to the baroque parish church of St. Martin. The current baroque building replaced an earlier castle in 1722 and was designed by Johann Georg Fischer of Oberdorf im Allgäu. Its garden holds an underground concert hall opened in 1996 for the Bavarian Music Academy.

A castle in Oberdorf is documented as early as 1424. Between 1505 and 1517 Prince-Bishop Heinrich von Lichtenau had a late-Gothic building erected, enlarged in 1598 and 1599. It stood until 1722, when Prince-Bishop Alexander Sigismund had it demolished and replaced by the present Baroque palace, built by Johann Georg Fischer of Oberdorf. Clemens Wenzeslaus of Saxony, last Prince-Bishop of Augsburg, died here in 1812.

The castle's garden holds an underground concert hall of the Bayerische Musikakademie Marktoberdorf, opened in 1996; the academy has occupied the building since 1984. From the castle, the two-kilometre Kurfürstenallee, an 18th-century lime avenue, runs southeast to a viewpoint outside town.

The castle stands at the eastern edge of Marktoberdorf, next to the baroque parish church of St. Martin, not in the town centre. From there, the two-kilometre Kurfürstenallee, an 18th-century lime avenue, leads southeast to a viewpoint outside town. The underground concert hall of the Bavarian Music Academy is in the castle garden.

The concert hall of the Bayerische Musikakademie Marktoberdorf lies underground in the castle garden; it opened in 1996, after the building had become the academy's seat in 1984. The two-kilometre Kurfürstenallee, an 18th-century lime avenue, runs southeast from the castle to a viewpoint outside town.