Beinn Dubhchraig is a mountain in the Scottish Highlands, west of Crianlarich in the northern part of Loch Lomond and the Trossachs National Park. It is a Munro with a height of 978 metres (3,209 ft). It is overshadowed by its neighbour Ben Lui, although it is well seen from the main A82 road. Its name means "mountain of the black rock", referring to the steep and rocky face on the southwest slopes above Loch Oss, which offer scrambling routes to the summit.

Loch Lomond and The Trossachs National Park is a national park in Scotland centred on Loch Lomond and the hills and glens of the Trossachs, along with several other ranges of hills. It was the first of the two national parks established by the Scottish Parliament in 2002, the second being the Cairngorms National Park. The park extends to cover much of the western part of the southern highlands, lying to the north of the Glasgow conurbation, and contains many mountains and lochs. It is the fourth-largest national park in the British Isles, with a total area of 1,865 km2 (720 sq mi) and a boundary of some 350 km (220 mi) in length. It features 21 Munros and 20 Corbetts.