South West was a combined constituency region of the European Parliament, comprising the South West of England and Gibraltar. Seven, later six, Members of the European Parliament using closed party-list proportional representation allocated using the D'Hondt method of distribution were elected. The constituency was abolished when Britain left the European Union on 31 January 2020.
South Wales was a European Parliament constituency covering south central Wales, including the city of Cardiff.
Bristol was a European Parliament constituency centred on Bristol in England, but covering much of Avon. Until 1984, it included parts of southern Gloucestershire and northwestern Wiltshire.
Cornwall and Plymouth was a European Parliament constituency covering the county of Cornwall and the city of Plymouth in Devon, England.
Devon was a European Parliament constituency covering all of Devon in England, with the exception of the city of Plymouth.
Leeds was a European Parliament constituency, centred on Leeds in the West Yorkshire area of England.
Sheffield was a European Parliament constituency covering the City of Sheffield and parts of Derbyshire in England.
Somerset was a European Parliament constituency in England, covering all of Somerset and southern Avon.
South East Wales was a European Parliament constituency covering south eastern Wales, including Gwent and parts of Mid Glamorgan.
Wessex was a European Parliament constituency covering all of Dorset in England, plus parts of western Hampshire and southern Wiltshire. It was named after the Anglo-Saxon Kingdom of Wessex.
Yorkshire North was a European Parliament constituency covering much of North Yorkshire and part of Humberside in England.
Yorkshire West was a European Parliament constituency covering the western parts of West Yorkshire in England, including Bradford and Halifax.
South Wales West was a European Parliament constituency covering part of south Wales, including the city of Swansea.
South Wales East was a European Parliament constituency covering southeastern Wales, including Gwent and parts of Mid Glamorgan.
South Wales Central was a European Parliament constituency covering south central Wales, including the city of Cardiff.
Somerset and North Devon was a European Parliament constituency covering all of Somerset in England, plus northern Devon and south-western Avon. With Cornwall and West Plymouth, it was one of the first two seats to elect a Liberal Democrat Member of the European Parliament.
Dorset East and Hampshire West was a European Parliament constituency covering most of Dorset and parts of western Hampshire in England.
Dorset and East Devon was a European Parliament constituency covering all of Dorset in England, with the exception of Christchurch, plus parts of eastern Devon.
Devon and East Plymouth was a European Parliament constituency covering all of Devon in England, with the exception of the city of Plymouth. It was created in 1994 to replace the majority of Devon and a small part of Cornwall and Plymouth.
Cornwall and West Plymouth was a European Parliament constituency covering Cornwall and Plymouth in England. With Somerset and North Devon, it was one of the first two seats to elect a Liberal Democrat Member of the European Parliament.
