Map - Osoyoos

Osoyoos (, historically ) is the southernmost town in the Okanagan Valley in British Columbia between Penticton and Omak. The town is 3.6 km north of the United States border with Washington state and is adjacent to the Osoyoos Indian reserve. The origin of the name Osoyoos was the word sw̓iw̓s (pronounced "soo-yoos") meaning "narrowing of the waters" in the local Okanagan language (Syilx'tsn). The "O-" prefix is not indigenous in origin and was attached by settler-promoters wanting to harmonize the name with other place names beginning with O in the Okanagan region (Oliver, Omak, Oroville, Okanogan). There is one local newspaper, the Osoyoos Times.

The town’s population of 5,556 (2021) swells in the summer months with seasonal visitors. Seniors (age 65 and over) comprise 43% of the town population. Another 2,139 people live around the town within Electoral Area A of the Regional District of Okanagan-Similkameen, and 1,426 more in the Osoyoos 1 Indian Reserve.

The first Europeans to Osoyoos were fur traders working for the Pacific Fur Company, an American enterprise. They ventured up the Okanagan River to Osoyoos Lake and farther north. After the Hudson’s Bay Company took over the fur trade in 1821, the Okanagan Valley became a major trade route for supplies to inland forts of British Columbia and furs that were shipped south to the Columbia River and the Pacific to European and Asian markets. The final Hudson’s Bay Company brigade in 1860 was the end of an era, as gold rushes transformed the economy of the new Colony of British Columbia. As parties of miners headed for the Fraser goldfields via the Okanagan Trail, they commonly met conflict with the Okanagan people. The Dewdney Trail passed through Osoyoos on its way from Hope to the Kootenays. The trail now forms the backbone of the Crowsnest Highway.

Thousands of miners heading to the goldfields and drovers with large herds of livestock crossed the 49th parallel after 1858. A custom house was built in Osoyoos in 1861 with John Carmichael Haynes as the tax collector. Haynes was also the first pioneer settler who obtained land along the Okanagan River north of Osoyoos that had been part of the Osoyoos Indian Reserve established by the Joint Indian Reserve Commission in 1877. These lands, now known as the Haynes Lease lands, remain as an original house and barn.

Osoyoos was incorporated as a village in 1946 when the railway arrived and became a town in the 1980s. When the railway was discontinued, its station house was purchased from the Town of Osoyoos and moved 300 m north to its current location by the Osoyoos Sailing Club.