Rai Valley

Rai Valley
Interactive map of Rai Valley
Coordinates: 41°13′39″S 173°34′59″E / 41.22750°S 173.58306°E / -41.22750; 173.58306
CountryNew Zealand
DistrictMarlborough
Ward
  • Marlborough Sounds General Ward
  • Marlborough Māori Ward
Electorates
Government
 • Territorial AuthorityMarlborough District Council
 • Marlborough District MayorNadine Taylor
 • Kaikōura MPStuart Smith
 • Te Tai Tonga MPTākuta Ferris
Area
 • Total
27.96 km2 (10.80 sq mi)
Population
 (June 2025)
 • Total
170
 • Density6.1/km2 (16/sq mi)

Rai Valley is a rural settlement in Marlborough, New Zealand. It is located on State Highway 6, 68 km (42 mi) northwest of Blenheim and 46 km (29 mi) east of Nelson. The Rai River runs past the locality to join the Pelorus River at the locality of Pelorus Bridge to the south. At the 2018 census, the settlement had a population of 177.

The area may have been named for the Rangitāne chief, Rai kau moana.

The locality supports dairy farming in the area, with a dairy and cheese factory established in about 1909.