|Main source||Ben McLeod Range|
|River mouth||Orari River|
|Length||23 km (14 mi)|
The Hewson River is a river of New Zealand's South Island. It flows east and then south from the Ben McLeod Range of inland Canterbury before flowing into the upper reaches of the Orari River 5 kilometres (3 mi) west of Mount Peel.
"Place Name Detail: Hewson River". New Zealand Geographic Placenames Database. Land Information New Zealand. Retrieved 12 July 2009.
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