| Orikaka River | |
| Source1 Location: | Matiri Range |
| Mouth Location: | Buller River |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Length: | 33km (21miles) |
The Orikaka River (also known as the Mackley River) is a river of the West Coast Region of New Zealand's South Island. It flows southwest from the southern end of the Matiri Range before turning south to flow into the Buller River five kilometres to the west of Inangahua.
The river physically connects with the Ngākawau River.