Vancouver ( ) is a coastal city and major seaport located in the Lower Mainland of southwestern British Columbia, Canada. It is the largest city in both British Columbia and Western Canada and the second largest after Seattle in the Pacific Northwest.

Vancouver is bounded by the Strait of Georgia, Burrard Inlet, the Fraser River, the city of Burnaby, and the University Endowment Lands. Vancouver is named after Captain George Vancouver, a British explorer. The name Vancouver itself originates from the Dutch "van Coevorden", denoting somebody from (in Dutch: "van") Coevorden, an old city in The Netherlands.

The population of the city of Vancouver is 578,041 and the population of Metro Vancouver is 2,116,581 (2006 Census). Vancouver is also part of the slightly larger Lower Mainland metropolitan area which comprises a total population of 2,547,479, making it the largest metropolitan area in Western Canada and the third largest in the country. Vancouver is ethnically diverse, with 52% of city residents and 43% of residents of Metro Vancouver having a first language other than English.

Vancouver was first settled in the 1860s as a result of immigration caused by the Fraser Canyon Gold Rush, particularly from the United States, although many immigrants did not remain after the rush. The city developed rapidly from a small lumber mill town into a metropolitan centre following the arrival of the transcontinental railway in 1887. The Port of Vancouver became internationally significant after the completion of the Panama Canal, which reduced freight rates in the 1920s and made it viable to ship export-bound prairie grain west through Vancouver. It has since become the busiest seaport in Canada, and exports more cargo than any other port in North America.

The economy of Vancouver has traditionally relied on British Columbia's resource sectors: forestry, mining, fishing and agriculture. It has diversified over time, however, and Vancouver today has a large service industry, a growing tourism industry, and it has become the third-largest film production centre in North America after Los Angeles and New York City, earning it the nickname Hollywood North.

Vancouver is consistently ranked one of the three most livable cities in the world. According to a 2008 report by Mercer Human Resource Consulting for example, Vancouver has the fourth highest quality of living in the world, after Zürich, Vienna and Geneva and ranked first in a survey by magazine The Economist. In 2007, according to Forbes, Vancouver had the 6th most overpriced real estate market in the world and second in North America after Los Angeles. In 2007, Vancouver was ranked Canada's second most expensive city to live after Toronto and the 89th most expensive globally, and, in 2006, the 56th most expensive city in which to live among 143 major cities in the world. In 2007, Vancouver was ranked as the 10th cleanest city in the world by Forbes. In October 2008, the City of Vancouver was named one of "Canada's Top 100 Employers" by Mediacorp Canada Inc., and was featured in Maclean's newsmagazine.