| Cleddau River | |
| Other Name: | Cheddar River |
| Pushpin Map: | New Zealand Fiordland#New Zealand South Island#New Zealand |
| Pushpin Map Size: | 270px |
| Pushpin Map Caption: | Mouth of the Cleddau River |
| Source1: | Cleddau River West Branch |
| Source1 Location: | Mount Ada |
| Source1 Coordinates: | -44.7254°N 167.8915°W |
| Source2: | Cleddau River North Branch |
| Source2 Location: | Te Pari / Sheerdown Peak |
| Source2 Coordinates: | -44.7025°N 167.9347°W |
| Source3: | Cleddau River South Branch |
| Source3 Location: | Homer Tunnel |
| Source3 Coordinates: | -44.7648°N 167.9794°W |
| Mouth Location: | Milford Sound |
| Mouth Coordinates: | -44.6779°N 167.9232°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Subdivision Type2: | Region |
| Subdivision Name2: | Southland |
| Subdivision Type3: | District |
| Subdivision Name3: | Southland |
| Tributaries Right: | Gulliver River, Donne River, Tūtoko River |
| Waterbodies: | The Chasm |
The Cleddau River (also known as Maori: '''Waipāteke''', Maori: '''Awa-piopiotahi''' and the Cheddar River) is a river of New Zealand. It flows into the head of Milford Sound.