| Waiho River | |
| Pushpin Map: | New Zealand South Island#New Zealand |
| Pushpin Map Size: | 270px |
| Pushpin Map Caption: | Mouth of the Waiho River |
| Source1: | Franz Josef Glacier |
| Source1 Coordinates: | -43.4497°N 170.1755°W |
| Mouth: | Tasman Sea |
| Mouth Coordinates: | -43.2863°N 170.0509°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | New Zealand |
| Subdivision Type2: | Region |
| Subdivision Name2: | West Coast |
| Subdivision Type3: | District |
| Subdivision Name3: | Westland |
| Length: | 25km (16miles) |
| Progression: | Franz Josef Glacier → Waiho River → Tasman Sea |
| River System: | Waiho River |
| Tributaries Left: | Trident Creek, Dolly Creek, Callery River, Docherty Creek |
| Tributaries Right: | Rope Creek, Arch Creek, Hugh Creek, Duck Creek, Park Creek, Tatare Stream |
The Waiho River (traditionally the Waiau River[1]) is a river of the West Coast region of New Zealand's South Island. It is fed by the meltwater of the Franz Josef Glacier and skirts the main township of Franz Josef to its south, where its river bed is crossed by on a long single-lane bridge. Due to changes in rainfall and snow melt, the river's water flow varies greatly. In a severe rain storm on 26 March 2019, the bridge was destroyed after of rain had fallen.[2] The bridge and one abutment was rebuilt, and the road link reopened after 18 days. The works cost NZ$6m.[3]
Waiho River merges with Docherty Creek just before reaching the Tasman Sea southwest of Ōkārito.