Kórnik Castle is a castle in the Polish town of Kórnik, which was constructed in the 14th century. The current neogothic design and remodeling was done in 1855 by the architect Karl Friedrich Schinkel for Tytus Działyński and the son Jan Kanty Działyński. After last member of Działyński family Jan Kanty Działyński's death, his brother-in-law Count Władysław Zamoyski received the castle in Jan's will. Shortly before his death in 1924, the childless count willed the castle, along with an extensive art collection and the Kórnik Arboretum to the Polish state.
The castle currently houses a museum and the Kórnik Library. It's one of Poland's official national Historic Monuments, as designated July 11, 2011 and tracked by the National Heritage Board of Poland.