|Origin||Two Thumbs Range|
|Basin countries||New Zealand|
|Length||38 kilometres (24 mi)|
The Macaulay River is a river of the Mackenzie Country of New Zealand's South Island. It flows south from the Two Thumbs Range, part of the Southern Alps, its valley merging with that of the Godley River shortly before it enters the northern end of Lake Tekapo.
- "Place Name Detail: Macaulay River". New Zealand Geographic Placenames Database. Land Information New Zealand. Retrieved 12 July 2009.