Bánffy Castle is an architectural monument situated in Bonţida, a village in the vicinity of Cluj-Napoca, Romania, with construction phases and stylistic features belonging to Renaissance, Baroque, Neoclassical and Neogothic styles.

In the 18th century the estate was inherited by Dénes Bánffy (IV), who, after a time spent in the Viennese Court of Empress Maria Theresa, returned home in 1747 and started a reconstruction of the castle in Austrian Baroque style.

Between 1747 and 1751 a Cour d'honneur in U shape was built to the eastern side of the Renaissance building, which contained: the riding school, the stable, the carriage rooms and servants' quarters.

Based on this concept, the park of 70 ha was set up after the design of architect Johann Christian Erras, which transposed into this space forms dominated by a strict geometry.

German troops plundered and devastated the castle, as retaliation against the political attitude of its owner, count Miklós Bánffy, who had initiated negotiations between the governments of Romania and Hungary for the return of weapons to be used against Germany.

In 1999, due to its ruinous state, the castle was included, at the request of the Transylvania Trust, in the World Monuments Watch List of 100 Most Endangered Sites.

In 2003, the Transylvania Trust signed with the authorities a long-term lease agreement for the castle, resigned with Katalin Bánffy in 2008 (who was given back the building in the meantime) for the duration of 49 years.