The Nancy River is a river of the West Coast Region of New Zealand's South Island. A tributary of the Ahaura River, it flows generally southwest from its source to the west of Mount Hochstsetter in the Southern Alps, turning west shortly before its outflow, 15 kilometres southeast of Lake Hochstetter.
"Place Name Detail: Nancy River". New Zealand Geographic Placenames Database. Land Information New Zealand. Retrieved 12 July 2009.
Coordinates: 42°32′S 171°50′E / 42.533°S 171.833°E