| Oaro River | |
| Mouth Location: | Pacific Ocean |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 11abbr=onNaNabbr=on |
The Oaro River is a river of the north Canterbury region of New Zealand's South Island. It flows south from its sources in the Hundalee Hills, turning east shortly before reaching the coast at Oaro, 15km (09miles) southwest of Kaikōura.