Wairoa River
Location
Country	New Zealand
Physical characteristics
Source
• location	Gordon Range
Mouth
• location	Waimea River
Length	45 kilometres (28 mi)

The Wairoa River is located in the north of the South Island of New Zealand. It flows north for 45 kilometres before combining with the Wai-iti River to form the Waimea River. This flows into the southern end of Tasman Bay / Te Tai-o-Aorere near Richmond.

41°20′47″S 173°06′56″E / 41.3463°S 173.1155°E / -41.3463; 173.1155