Naturpark Eichenhain, Nature park in Lower Austria, Austria.

Naturpark Eichenhain is a protected nature reserve in the Vienna Woods featuring beech and oak forests with gentle slopes and varied terrain. The area encompasses multiple communities and displays different forest types and woodland structures.

Naturpark Eichenhain was placed under protection in 1979, covering about 3,800 hectares in the municipalities of Klosterneuburg and St. Andrä-Wördern. The protected area occupies the northern part of the Vienna Woods where it meets the Danube valley and the Tullnerfeld, on a sandstone subsoil.

The park features the Kunstlerweg trail showcasing works by Gugging Artists who create Art Brut pieces displayed along the walking routes. These artists have a strong presence in the area and add a creative dimension to visits.

The park can be accessed from several entry points including the towns of Kierling, Weidling, and near the cemetery in Klosterneuburg. A network of marked trails connects these access points and allows visitors to choose different routes through the woodland.

The Hagenbach, a stream cutting into the soft sandstone, has carved the Hagenbachklamm, a small gorge opened up by a hiking trail. The gorge is linked to the raptor breeding station in Unterkirchbach (municipality of St. Andrä-Wördern), which keeps around 300 birds of prey across 30 species.