The Buzău Mountains are a set of six mountains ranges in Romania which are part of the Curvature Carpathians region of the Outer Eastern Carpathians.

The Podu Calului and Siriu Massifs are to the north, separated from the Întorsurii Mountains [ro] by the Întorsura Buzăului Depression [ro], while the Ivănețu Massif is to the south.

Lacul Vulturilor is a periglacial lake located near Siriu, at an altitude of 1,420 m (4,660 ft).

The surrounding area offers vineyards, camping and hiking as visitor attractions.

Rockfalls, mudslides and other seismic activity are not uncommon in the area.