Rai Valley

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 2024)
  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.