Buchberg, Mountain summit in Maria Anzbach, Austria.

Buchberg is a 469-metre summit on the municipal boundary between Maria Anzbach and Neulengbach in Lower Austria. On its plateau stand the 22.5-metre Buchbergwarte, a tower of 117 steps whose platform at 19 metres gives a view from the Schneeberg in the south to the Traunstein in the west, and the Schutzhaus am Buchberg.

Ceramic finds show the summit plateau was settled from the late Neolithic to the Celtic period, and excavations revealed the largest prehistoric rampart in the Vienna Woods, measuring 350 by 150 metres and reaching its greatest extent in the late Bronze Age Urnfield culture. The whole area is protected as a monument. In 1982 a citizens' initiative bought the plots next to the former shelter; in 2002 Neulengbach, Maria Anzbach and Asperhofen acquired the shelter's plot, and the shelter reopened in 2003.

The name Buchberg refers to the beech trees (Buche) on the hill. The summit's association with the Neulengbach club D'Wildegger, named after Wildegg Castle near Heiligenkreuz, lives on in the Wildegger-Schutzhaus opened in 1907; the hut was later renamed Hans-Krieger-Hütte after a former club chairman. Today a Schirmbar, playground and petting zoo stand beside the Schutzhaus am Buchberg.

The tower is easy to reach and requires a moderate climb up stairs to access the viewing platform and enjoy the views. The shelter at the top offers refreshments and seating, which is helpful during longer walks in the area.

The mountain sits exactly on the boundary line between two municipalities and is crossed by several hiking paths of different difficulty levels. Cyclists can reach it via a gravel route, making it a point where different types of outdoor activities meet.