The Château de Diant is a castle in the commune of Diant in the Seine-et-Marne département of France.
The castle was originally constructed in the 13th century for a companion of Philippe Auguste, with additions and modifications in the 15th century and the first half of the 19th.
The castle has been protected since 1946 as a monument historique by the French Ministry of Culture. The gardens are also listed. The castle and gardens are privately owned and not open to the public.
Ministry of Culture: