The Stony River is a river in the South Island of New Zealand. Rising at southern end of the Grampian Mountains, it runs west for 30 kilometres (19 mi) through rough country to the Mackenzie Basin before emptying into Lake Benmore.

Stony River
Location of the mouth within New Zealand
Location
Country	New Zealand
Physical characteristics
Source
• location	Grampian Mountains
• elevation	1,530 m (5,020 ft)
Mouth
• location	Lake Benmore
• elevation	370 m (1,210 ft)
Length	30 km (19 mi)