Is the Black Forest only in Germany?

The Black Forest Region

The Black Forest, known in German as Schwarzwald [ˈʃvaʁt͡svalt], is a vast mountainous forest located in the southwestern part of Germany, specifically in the state of Baden-Württemberg. This natural expanse is bordered by the Rhine Valley to the west and south, and it lies in close proximity to the borders of France and Switzerland. Additionally, it serves as the origin for the Danube and Neckar rivers.