The Okanagan Valley wine region, located within the region of the same name in the British Columbia Interior, is Canada's second-largest wine producing area. Along with the nearby Similkameen Valley, the approximately 8,619 acres of vineyards planted in the Okanagan account for more than 80% of all wine produced in British Columbia, and are second in economic importance for wine production to the Niagara Peninsula of Ontario. Some 182 licensed wineries existed from south to north in the valley in 2018, with many situated along the 135 km (84 mi)-long Okanagan Lake and its tributaries and downstream lakes, including Skaha Lake, Vaseux Lake, and Osoyoos Lake. The Okanagan has diverse terrain that features many different microclimates and vineyard soil types, contributing characteristics which are part of an Okanagan terroir.

The Okanagan, also called the Okanagan Valley and sometimes the Okanagan Country, is a region in the Canadian province of British Columbia defined by the basin of Okanagan Lake and the Canadian portion of the Okanagan River. It is part of the Okanagan Country, extending into the United States as Okanogan County in north-central Washington. According to the 2016 Canadian census, the region's population is 362,258. The largest populated cities are Kelowna, Penticton, Vernon, and West Kelowna.