The Château-Neuf de Saint-Germain-en-Laye (New Château of Saint-Germain-en-Laye) was a French chateau (country house or castle), now mostly demolished, which served as a royal residence from the second half of the 16th century until 1680. It was built on the grounds of the older Château de Saint-Germain-en-Laye, which became known as the Château-Vieux (Old Château).