The Üsenberg Castle (German: Burg Üsenberg; Alemannic German: Burg Isebärg) was a ruined hill castle near the city of Breisach in the Breisgau-Hochschwarzwald district of Baden-Württemberg, Germany.

The castle was built in the 11th century as the family seat of the lords of Üsenberg [de].

It was located just north of the emerging town of Breisach.

As a replacement, the lords of Üsenberg obtained the Höhingen Castle near Achkarren.

In 1320, the lords of Üsenberg sold the lot of the former castle to the city inhabitants.