| Wairoa River | |
|---|---|
&sq=Qlik&lang=&file=File:Clevedon,_Auckland,_New_Zealand,_1_April_2011_-_Flickr_-_PhillipC.jpg) An aerial view of the Wairoa River mouth | |
 Route of the Wairoa River | |
&sq=Qlik&lang=&file=File:Auckland_Council_2019_Wards_Outlined_Blank.png)  Mouth of the Wairoa River &sq=Qlik&lang=&file=File:New_Zealand_(relief_map).png)  Wairoa River (Auckland) (New Zealand) | |
| Location | |
| Country | New Zealand |
| Region | Auckland Region |
| Physical characteristics | |
| Source | Hunua Ranges |
| • coordinates | 37°02′39″S 175°08′52″E / 37.04425°S 175.14773°E |
| Mouth | Tāmaki Strait |
• coordinates | 36°56′20″S 175°05′25″E / 36.938916°S 175.090313°E |
| Basin features | |
| Progression | Wairoa River → Tāmaki Strait → Hauraki Gulf → Pacific Ocean |
| Landmarks | Clevedon |
| Tributaries | |
| • left | Mangawheau Stream, Hunua Stream, Taitaia Stream |
| • right | Cosseys Creek, Urungahauhau Stream |
| Waterbodies | Wairoa Reservoir |
| Waterfalls | Hunua Falls |
| Bridges | Clevedon Wharf Bridge |
The Wairoa River, also known as Wairoa South, is the second longest river in the Auckland Region of New Zealand's North Island. It flows south from its sources in the Hunua Ranges, then northwards into the Hauraki Gulf. The Wairoa Reservoir and Hūnua Falls form sections of the river, and the Wairoa River flows adjacent to the township of Clevedon.