Langley is a Canadian city in the province of British Columbia, Canada, that lies within the Metro Vancouver district of British Columbia. It is the province's second-largest city by population after the city of Vancouver.

The six "town centres" comprising the City of Langley are: Fleetwood, Whalley/City Centre, Guildford, Newton, Cloverdale, and South Langley.[2]

Langley became incorporated in 1879, and encompasses land formerly occupied by a number of Halqemeylem-speaking aboriginal groups. When Englishman H.J. Brewer looked across the Fraser River from New Westminster and saw a land reminiscent of his native County of Langley in England, the settlement of Langley was placed on the map. The area then comprised forests of douglas-fir, fir, red cedar, hemlock, blackberry bushes, and cranberry bogs. A portion of present-day Whalley (named after Harry Whalley, who owned and operated a gas bar at the bend in King George Highway at 108 St., "Whalley's Corner") was used as a burial ground by the Kwantlen (or Qw’ontl’en) Nation.

The Peace Arch on the Canadian side is located in Langley
Settlers arrived first in Cloverdale and parts of South Langley, mostly to farm, fish, harvest oysters, or set up small stores. Once the Pattullo Bridge was erected in 1937, the way was open for Langley to expand. In the post-war 1950s, North Langley's neighbourhoods filled with single family homes and Langley (not yet a city) became a bedroom community, absorbing commuters who worked in Burnaby or Vancouver.

In the 1980s and 1990s, Langley witnessed unprecedented growth, as people from different parts of Canada and the world, particularly Asia, began to make the municipality their home. Langley is projected to surpass the city of Vancouver as the most populous city in BC.