Glasgow (Scots: Glesga; Scottish Gaelic: Glaschu) is the most populous city in Scotland and the fourth-most populous city in the United Kingdom, as well as being the 27th largest city by population in Europe.[6] In 2020, it had an estimated population of 635,640. Historically part of Lanarkshire, the city now forms the Glasgow City council area, one of the 32 council areas of Scotland, and is governed by Glasgow City Council. Glasgow is situated on the River Clyde in the country's West Central Lowlands. It is the fifth-most visited city in the United Kingdom.[7]

Glasgow grew from a small rural settlement on the River Clyde to become the largest seaport in Scotland, and tenth largest by tonnage in Britain. Expanding from the medieval bishopric and royal burgh, and the later establishment of the University of Glasgow in the 15th century, it became a major centre of the Scottish Enlightenment in the 18th century. From the 18th century onwards, the city also grew as one of Britain's main hubs of transatlantic trade with North America and the West Indies. With the onset of the Industrial Revolution, the population and economy of Glasgow and the surrounding region expanded rapidly to become one of the world's pre-eminent centres of chemicals, textiles and engineering; most notably in the shipbuilding and marine engineering industry, which produced many innovative and famous vessels. Glasgow was the "Second City of the British Empire" for much of the Victorian era and the Edwardian era.[8][9][10][11]

In the late 19th and early 20th centuries, Glasgow's population grew rapidly, reaching a peak of 1,127,825 people in 1938.[12] The population of Glasgow was greatly reduced following comprehensive urban renewal projects in the 1960s which resulted in large-scale relocation of people to designated new towns, such as Cumbernauld, Livingston, East Kilbride and peripheral suburbs, followed by successive boundary changes. Over 985,200 people live in the Greater Glasgow contiguous urban area, while the wider Glasgow City Region is home to over 1,800,000 people, equating to around 33% of Scotland's population.[2] The city has one of the highest densities of any locality in Scotland at 4,023/km2.

Glasgow has the largest economy in Scotland and the third highest GDP per capita of any city in the UK.[13][14] Glasgow's major cultural institutions - the Burrell Collection, Kelvingrove Art Gallery and Museum, the Royal Scottish National Orchestra, Scottish Ballet and Scottish Opera – enjoy international reputations. The city was the European Capital of Culture in 1990 and is notable for its architecture, culture, media, music scene, sports clubs and transport connections. Natives or inhabitants of Glasgow are known as Glaswegians, and are well known for their distinctive dialect and accent. Glasgow hosted the 2014 Commonwealth Games and the first European Championships in 2018, and was one of the host cities for UEFA Euro 2020. The city is also well known in the sporting world for football, particularly the Old Firm rivalry between Celtic and Rangers.