Teufelsloch may refer to:
Teufelsloch (Teufelsbäder), a sinkhole with a karst spring in the Harz Mountains of Germany near Osterode am Harz, Lower Saxony Teufelsloch (doline), a doline in the southern Black Forest in Germany near Rheinfelden, Baden-Württemberg. Teufelsloch (ravine), a ravine in the Swabian Jura near Bad Boll, Baden-Württemberg Teufelsloch (Lattengebirge), the natural rock arch in the Lattengebirge near Berchtesgaden, Bavaria The Teufelshöhle (Pottenstein), near Pottenstein, Bavaria, Germany The Teufelshöhle (Steinau), near Steinau, Hesse, Germany Průrva Ploučnice, the artificial, underground river course in Bohemia, Czech Republic Devil's Hole, the underground water reservoir in Nevada, USA