List of double placenames
Double placenames prominently feature the placenames of two or more constituent geopolitical entities.
Such placenames are often created when two cities, provinces or other territories are amalgamated or merged, and a decision is taken to preserve the old names in double-barrelled form rather than invent a new name. This is often out of consideration for local sensitivities, since the smaller entity may resent its takeover, and may demand its symbolic perpetuation within an amalgamated name so as to propagate the impression of a merger between equals.
- 1 Styles
- 2 Sovereign states
- 3 Non-sovereign entities
- 4 Former placenames
- 5 Triple placenames
- 6 Metropolitan areas
- 7 Traditionally conjoined entities
- 8 See also
In their English forms, the conjoined names may have the following patterns:
The punctuation and capitalization practices in written English vary:
- merging into one word without an intermediate space, e.g. Budapest
- standing apart, e.g. Papua New Guinea
- conjunction by hyphenation. While English-speakers are relaxed about using a hyphen or not, this punctuation once caused controversy between Czechs and Slovaks
- conjunction with an en dash, typically when the usage is associative, attributive or is a juxtaposition of two independent entities.
- CamelCase may sometimes be attempted, but many style guides recommend against this in formal English-language use.
Three-word names for two-part entities are often ambiguous. For example, it may not be clear whether North Rhine-Westphalia is an amalgamation between the north part of the Rhine Province on the one hand and Westphalia on the other (true) or the northern division of some pre-existing place called Rhine-Westphalia (false). While this problem does not arise in German, no entirely satisfactory punctuation of such names has been established in English. In the above case, the hyphen is often omitted because it is misleading. It has been proposed that this state's name be punctuated "North-Rhine/Westphalia" in English, but the solidus or forward slash is also ambiguous.
- BosWash: the megalopolis extending from Boston to Washington, D.C., CamelCase example (extended in fiction into a Boston–Atlanta Metropolitan Axis or BAMA covering most of the US East Coast)
- SeaTac: another example of CamelCase (Seattle and Tacoma, Washington)
- Czechoslovakia: the Czech lands and Slovakia
- Senegambia: Senegal and Gambia
- Tanzania: Tanganyika and Zanzibar
False double placenames
- Guinea-Bissau (official name of the country with capital Bissau, as distinct from Guinea, with capital Conakry)
- Congo-Brazzaville and Congo-Kinshasa (from the respective capitals of what are officially Republic of the Congo and Democratic Republic of the Congo)
They are often used for railway stations and airports:
- King's Cross St. Pancras This is the London Underground station serving two separate London train terminals, King's Cross and St. Pancras International train stations.
- Paris - Orly Airport (one of two Paris airports)
- Trenton–Mercer Airport (actually located in Ewing, outside Trenton, both in Mercer County)
Trenton-Mercer is an example of a marketing decision in which a small airport tries to associate itself with a larger city. Ryanair has been criticized for promoting names for airports unusually far from the city from which they are named, such as Paris Beauvais Tillé Airport (a triple name) and Frankfurt-Hahn Airport.
Binomial names may be seen in German-language texts to denominate parts of towns:
- Bergen-Belsen (the Belsen section within the municipality of Bergen: this form is now fixed in English when referring to the Nazi concentration camp and the present memorial there)
- Berlin-Charlottenburg: the district of Charlottenburg, Berlin
The word "and" in its name does not always signify the union of two distinct territories:
- Sala y Gómez: one island named for two people
- Lewis and Clark County, Montana: named for Meriwether Lewis and William Clark
- Vitoria-Gasteiz: the combination of this city's Spanish name of Vitoria and Basque name of Gasteiz
- Dingle/Daingean Uí Chúis: proposed official name (combining English and Irish-language names) of a town in the County Kerry Gaeltacht.
- Aoraki / Mount Cook: mountain in New Zealand with Māori and English names combined. Many geographic features of New Zealand are officially designated in a similar way (and the country as a whole is sometimes unofficially referred to as "Aotearoa New Zealand").
Similarly, places may simply have an official name which consists of two names, such as the Australian territory of the Cocos (Keeling) Islands, which consists of the North Keeling Island and the South Keeling Islands.
Sometimes names will be concatenated during a name change. Zimbabwe Rhodesia was the name of the former Rhodesia and future Zimbabwe from June 1 to December 12, 1979.
- Antigua and Barbuda: Antigua and Barbuda
- Bosnia and Herzegovina: Bosnia and Herzegovina
- Great Britain and Northern Ireland: Great Britain and Northern Ireland
- Papua New Guinea: Territories of Papua and New Guinea; Papua and New Guinea are actually alternate names of the same island, New Guinea, but have been used officially for different parts of this island
- São Tomé and Príncipe: São Tomé and Príncipe
- Saint Kitts and Nevis: Saint Kitts and Nevis
- Saint Vincent and the Grenadines: Saint Vincent and Grenadines
- Trinidad and Tobago: Trinidad and Tobago
- Andaman and Nicobar Islands: Andaman Islands and Nicobar Islands (India)
- Ashmore and Cartier Islands: Ashmore Island and Cartier Island (Australia)
- Heard Island and McDonald Islands: Heard Island and McDonald Island (Australia)
- Saint Pierre and Miquelon: Saint Pierre Island and Miquelon (France)
- South Georgia and the South Sandwich Islands: South Georgia and South Sandwich Islands (United Kingdom)
- Trindade and Martim Vaz: Trindade Island and Martim Vaz Island (Brazil)
- Turks and Caicos Islands: Turks and Caicos (United Kingdom)
- Wallis and Futuna Islands: Wallis Island and Futuna Islands (France)
Regions of states
- Arica y Parinacota Region: Arica and Parinacota (Chile)
- Emilia-Romagna: Emilia and Romagna (Italy)
- Friuli-Venezia Giulia: Friuli and Venezia Giulia (Italy)
- Trás-os-Montes e Alto Douro: Trás-os-Montes and Alto Douro (Portugal)
- Trentino-Alto Adige/Südtirol: Trentino (Italy)
States of federations
- Baden-Württemberg: Baden and Württemberg (Germany)
- Mecklenburg-Vorpommern: Mecklenburg and Vorpommern (Germany)
- Newfoundland and Labrador: Newfoundland and Labrador (Canada)
- North Rhine-Westphalia: part of the Rhineland with Westphalia (Germany)
- Rhineland-Palatinate: part of the Rhineland with the Palatinate (Germany)
- Rhode Island and Providence Plantations: Rhode Island proper and Providence Plantations (United States)
- Saxony-Anhalt: part of Saxony with Anhalt (Germany)
- Schleswig-Holstein: Schleswig and Holstein (Germany)
Seven regions of France, several federal subjects of Russia and some autonomous communities of Spain ( Castile and León, Castile-La Mancha) also feature two or more placenames conjoined by a hyphen or with the word "and" (or its translation).
- Bà Rịa–Vũng Tàu Province (Vietnam)
- Kuyavian-Pomeranian Voivodeship: Kuyavia and Pomerania (Poland)
- Thừa Thiên–Huế Province (Vietnam)
- Warmian-Masurian Voivodeship: Warmia and Masuria (Poland)
- Budapest formed in 1873 by the amalgamation of three former capitals, Buda and Óbuda (Old Buda) on the right bank of the Danube, and Pest on the left bank.
- Abruzzi e Molise: Abruzzo and Molise
- Araucania and Patagonia: Araucanía and Patagonia
- Austria-Hungary: Austria and Hungary
- Corsica et Sardinia: Corsica and Sardinia
- Croatia-Slavonia: Croatia and Slavonia
- Denmark–Norway: Denmark and Norway
- Gilbert and Ellice Islands: Gilbert Islands and Ellice Islands
- Gorizia and Gradisca: Gorizia and Gradisca
- Kalinga-Apayao: Kalinga and Apayao
- Lombardy-Venetia: Lombardy and Venetia
- Massa and Carrara: Massa and Carrara
- Modena and Reggio: Modena and Reggio
- Muscat and Oman: Muscat and Oman
- Ubangi-Shari: Ubangi and Shari
- Piedmont–Sardinia: Piedmont and Sardinia
- Poland–Lithuania: Poland and Lithuania
- Rhodesia and Nyasaland: Rhodesia and Nyasaland
- Ruanda-Urundi: Rwanda and Burundi
- Serbia and Montenegro: Serbia and Montenegro
- Río de Oro y Saguía el Hamra: Río de Oro and Saguía el-Hamra
- Sweden–Finland: anachronistic term sometimes used for Sweden prior to its cession of Finland
- Sweden–Norway: Sweden and Norway
- United Kingdom of Great Britain and Ireland: Great Britain and Ireland
- Zimbabwe-Rhodesia: Zimbabwe and Southern Rhodesia, two names for the same territory
- Barletta-Andria-Trani: Barletta, Andria and Trani, a province in the Italian region of Apulia
- Basel-Mulhouse-Freiburg, the name of the airport situated between Mulhouse and Basel on the France-Switzerland border and near the German city of Freiburg.
- Elobey, Annobón, and Corisco: Elobey, Annobón and Corisco, a former Spanish territory
- Mongmong-Toto-Maite: a village in the United States territory of Guam consisting of three traditional villages united after the Second World War.
- Provence-Alpes-Côte d'Azur: Provence, Alpes and Côte d'Azur, a region of France
- Rhondda Cynon Taff: River Rhondda, River Cynon and River Taff in Wales
- Stormont, Dundas and Glengarry United Counties: a county in Ontario, Canada, consisting of the former counties of Stormont County, Dundas County, and Glengarry County.
- Verbano-Cusio-Ossola: Verbano, Cusio and Ossola, a province in the Italian region of Piedmont
- Yau Tsim Mong District: Yau Ma Tei, Tsim Sha Tsui and Mong Kok, a district in Hong Kong
- Tierra del Fuego, Antártida e Islas del Atlántico Sur, an Argentine province comprising its part of Tierra del Fuego island, Argentina's claims to Antarctica and Argentina's claims to the Falkland, South Georgia and South Sandwich Islands.
- Saint Helena, Ascension and Tristan da Cunha, A British Overseas territory
When not given their own unique singular name (like Greater London, England or the Bay Area, California), metropolitan areas composed of multiple cities – metroplexes – and facilities shared by them, are often collectively named or referred to with the names of the major cities that comprise them. These are conjoined with an unspaced en dash in formal writing, though not journalism, which hyphenates. Some examples include:
- Adana-Mersin Metropolitan Area, Turkey
- Amsterdam-The Hague-Rotterdam, Netherlands (also known collectively as the Randstad or Edge City)
- Baltimore–Washington Metropolitan Area, Maryland and DC, United States
- Champaign–Urbana and University of Illinois at Urbana–Champaign, US
- Dallas–Fort Worth, Texas, US
- Gulfport–Biloxi, Mississippi, US
- Minneapolis–St. Paul, Minnesota, US
- Osaka-Kobe-Kyoto, Japana (a.k.a. Keihanshin)
- Raleigh-Durham-Chapel Hill, North Carolina, US (a.k.a. the Research Triangle)
- Seattle–Tacoma Airport, Washington (state), US
Some may even be international conurbations, and do not exist as geo-political entities:
Traditionally conjoined entities
Separate entities historically treated as one single unit by tradition or convention:
- Alsace-Lorraine: Alsace and Lorraine
- Baker and Howland Islands: Baker Island and Howland Island
- Bohemia and Moravia: Bohemia and Moravia
- England and Wales: England and Wales
- Eupen and Malmedy: Eupen and Malmedy
- Matthew and Hunter Islands: Matthew Island and Hunter Island
- Svalbard and Jan Mayen: Svalbard and Jan Mayen
- Bath and North East Somerset: Bath and north east Somerset
- Blackburn with Darwen: Blackburn with Darwen
- Brighton and Hove: Brighton and Hove
- Kensington and Chelsea: Kensington and Chelsea
- Redcar and Cleveland: Redcar and Cleveland
- Telford and Wrekin: Telford and The Wrekin
- Tyne and Wear: River Tyne and River Wear
- Dungannon and South Tyrone: Dungannon and south Tyrone
- Newry and Mourne: area around Newry and the Mourne Mountains
- Dumfries and Galloway: Dumfriesshire and Galloway
- Lewis and Harris: one island consisting of Lewis and Harris
- Perth and Kinross: Perthshire and Kinrosshire
- Argyll and Bute: Argyll and Bute
- Neath Port Talbot: Neath and Port Talbot
- Rhondda Cynon Taff: River Rhondda, River Cynon, and River Taff
- Dover-Foxcroft, Maine: created in 1922 by the merger of towns Dover and Foxcroft
- Elko New Market, Minnesota: created in 2006 from a merger of bordering cities Elko and New Market.
- Helena-West Helena, Arkansas: created in 2006 by the merger of the former cities of Helena and West Helena
- La Cañada Flintridge, California: created from unincorporated areas called La Cañada and Flintridge
- Leo-Cedarville, Indiana: created by the merger of Leo and Cedarville
- Lexington-Fayette, Kentucky: the official name of the merged city of Lexington and county of Fayette
- Little River-Academy, Texas: created from the merger of Little River and Academy in 1980
- Fuquay-Varina, North Carolina: created from the merger of Fuquay Springs and Varina
- Pico Rivera, California: created from unincorporated areas called Pico and Rivera
- Melcher-Dallas, Iowa: created by the merger of the cities of Melcher and Dallas in 1986
- Miami-Dade County, Florida: The governments of Dade County and its largest city, Miami, have been merged since 1957, but the county did not take its current name until 1997, when county voters passed a referendum to that effect.
- Milton-Freewater, Oregon: created in 1951 from the merger of Milton and Freewater.
- Matanuska-Susitna Borough, Alaska: Named for Matanuska River and the town of Susitna.
- More than half of the land area of Alaska is within the Unorganized Borough which is administered directly by the state. Therefore, the United States Government considers the census areas within the Unorganized Borough to be county-equivalent entities.  Four of these have double (or triple) names:
- Norwood Young America, Minnesota, formed in 1997 when the cities of Norwood and Young America merged.
- Sedro-Woolley, Washington, formed in 1898 from towns Sedro and Woolley
- Soddy-Daisy, Tennessee, created in 1969 by the incorporation of the former communities of Soddy and Daisy, plus some surrounding areas
- Texarkana, on the border between Texas and Arkansas, and near the triple point of those two states with Louisiana
- Winston-Salem, North Carolina, created by the 1913 merger of the towns of Winston and Salem.
- Wilkes-Barre, Pennsylvania, named after British Parliamentarians John Wilkes and Isaac Barré who were sympathetic to colonial concerns
- Albury–Wodonga, Australia: incorporating the twin cities of Albury and Wodonga, divided by the Murray River which marks the border between states
- Brandýs nad Labem-Stará Boleslav, Czech Republic: created in 1960 from the merger of two towns (see also other Czech municipalities with hyphenated names)
- Dún Laoghaire–Rathdown: borough of Dún Laoghaire and barony of Rathdown in Ireland
- Corporation of the United Townships of Dysart, Dudley, Harcourt, Guilford, Harburn, Bruton, Havelock, Eyre and Clyde: official name of a municipality in central Ontario, Canada formed by the merger of nine smaller communities; more commonly known as "Dysart et al"
- Manawatu-Wanganui: Region of New Zealand, combining the regions of Manawatu and Whanganui river catchments
- San Andrés and Providencia: San Andrés Island and Providencia Island in Colombia
- Skanör med Falsterbo: a city formed from the conurbation of the two previous cities Skanör and Falsterbo in southwesternmost Sweden.