Canvastown is a locality at the point where the Wakamarina River joins the Pelorus River, in Marlborough, New Zealand. State Highway 6 runs through the area. Rai Valley is 17 km to the northwest. Havelock is 10 km to the east. The town was founded in 1864, after gold was discovered in the Wakamarina Valley. Up to 6000 miners came to make their fortunes. Where there had previously been a Māori pā, streets of tents sprang up providing tents, restaurants and taverns to a population of about 3000 people.
About 25,000 ounces (710,000 g) of gold was recovered in 1864. The surface gold was worked out within two years and most of the miners moved on to new gold discoveries on the West Coast. Steam dredges continued to work the river into the 20th century. Canvastown School is a coeducational full primary (years 1-8) school with a decile rating of 5 and a roll of 29. The school was founded in 1877 and celebrated its 125th Jubilee in 2002.