Angenstein Castle (German: Schloss Angenstein or simply Angenstein) is a castle in the municipality of Duggingen in the canton of Basel-Land in Switzerland. It is a Swiss heritage site of national significance.
The Jura Railway passes through a tunnel under Angenstein Castle on its route between Basel and Delémont.
A Scoutsgroup and few other organisations and companies are named after the castle.
Coordinates: 47°27′48″N 7°36′18″E / 47.463298°N 7.604869°E