The Nassau Nature Park (German: Naturpark Nassau) is a nature park in the southwestern Westerwald and the northwestern Taunus area of the German state of Rhineland-Palatinate, located within the historical state of Nassau and including the town Nassau. It comprises 561.71 km². The nature park was officially established in 1963. The area is noted for its scenic landscape and medieval castles, and is a popular tourist destination.
The Rhine Gorge UNESCO world heritage site is part of the Nassau Nature Park.
Coordinates: 50°19′48″N 7°48′36″E / 50.3300°N 7.8100°E