| Leslie River | |
|---|---|
 Route of the Leslie River | |
.png)  Mouth of the Leslie River   Leslie River (South Island) | |
| Location | |
| Country | New Zealand |
| Physical characteristics | |
| Source | Wharepapa / Arthur Range |
| • coordinates | 41°12′17″S 172°40′58″E / 41.2046°S 172.6829°E |
| Mouth | |
• location | Karamea River |
• coordinates | 41°13′58″S 172°30′29″E / 41.2329°S 172.5081°E |
| Length | 12 kilometres (7.5 mi) |
| Basin features | |
| Progression | Leslie River → Karamea River → Ōtūmahana Estuary → Karamea Bight → Tasman Sea |
| Tributaries | |
| • left | Twins Creek, Arthur Creek, Meyer Stream, Wilkinson Creek |
| • right | Peel Stream, Hodges Stream |
The Leslie River is a river of the northwest of New Zealand's South Island located in the Buller District. A tributary of the Karamea River, the Leslie flows west from the Wharepapa / Arthur Range, meeting the Karamea 28 kilometres (17 mi) east of the town of Karamea. The river's entire length is within Kahurangi National Park.