Sovereign-state flags in 1980

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Sovereign states

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Afghanistan (until 21 April)
 
Afghanistan (from 21 April)
 
Albania
 
Algeria
 
Andorra
 
Angola
 
Argentina
 
Armenian Soviet Socialist Republic
 
Australia
 
Austria
 
Azerbaijan Soviet Socialist Republic
 
Bahamas
 
Bahrain
 
Bangladesh
 
Barbados
 
Belgium
 
Benin
 
Bhutan
 
Bolivia
 
Botswana
 
Brazil
 
Bulgaria
 
Burma
 
Burundi
 
Byelorussian Soviet Socialist Republic
 
Cameroon
 
Canada
 
Cape Verde
 
Central African Republic
 
Chad
 
Chile
 
People's Republic of China
 
Colombia
 
Comoros
 
People's Republic of the Congo
 
Costa Rica
 
Cuba
 
Cyprus
 
Czechoslovakia
 
Denmark
 
Djibouti
 
Dominica
 
Dominican Republic
 
Ecuador
 
Egypt
 
El Salvador
 
Equatorial Guinea
 
Estonian Soviet Socialist Republic
 
Ethiopia
 
Fiji
 
Finland
 
France
 
Gabon
 
Gambia
 
East Germany
 
West Germany
 
Georgian Soviet Socialist Republic
 
Ghana
 
Greece
 
Grenada
 
Guatemala
 
Guinea
 
Guinea-Bissau
 
Guyana
 
Haiti
 
Honduras
 
Hungary
 
Iceland
 
India
 
Indonesia
 
Iran (until 31 January)
 
Iran (31 January – 29 July)
 
Iran (from 29 July)
 
Iraq
 
Ireland
 
Israel
 
Italy
 
Ivory Coast
 
Jamaica
 
Japan
 
Jordan
 
Kampuchea
 
Kazakh Soviet Socialist Republic
 
Kenya
 
Kirghiz Soviet Socialist Republic
 
Kiribati
 
North Korea
 
South Korea
 
Kuwait
 
Laos
 
Latvian Soviet Socialist Republic
 
Lebanon
 
Lesotho
 
Liberia
 
Libya
 
Liechtenstein
 
Lithuanian Soviet Socialist Republic
 
Luxembourg
 
Madagascar
 
Malawi
 
Malaysia
 
Maldives
 
Mali
 
Malta
 
Mauritania
 
Mauritius
 
Mexico
 
Moldavian Soviet Socialist Republic
 
Monaco
 
Mongolia
 
Morocco
 
Mozambique
 
Nauru
 
Nepal
 
Netherlands
 
New Zealand
 
Nicaragua
 
Niger
 
Nigeria
 
Norway
 
Oman
 
Pakistan
 
Panama
 
Papua New Guinea
 
Paraguay
 
Paraguay
 
Peru
 
Philippines
 
Poland (until 31 January)
 
Poland (from 31 January)
 
Portugal
 
Qatar
 
Romania
 
Russian Soviet Federative Socialist Republic
 
Rwanda
 
Saint Lucia
 
Saint Vincent and the Grenadines
 
San Marino
 
São Tomé and Príncipe
 
Saudi Arabia
 
Senegal
 
Seychelles
 
Sierra Leone
 
Singapore
 
Solomon Islands
 
Somalia
 
South Africa
 
Spain
 
Sri Lanka
 
Sudan
 
Suriname
 
Swaziland
 
Sweden
 
Switzerland
 
Syria (until 30 March)
 
Syria (from 30 March)
 
Taiwan
 
Tajik Soviet Socialist Republic
 
Tanzania
 
Thailand
 
Togo
 
Tonga
 
Trinidad and Tobago
 
Tunisia
 
Turkey
 
Turkmen Soviet Socialist Republic
 
Tuvalu
 
Uganda
 
Ukrainian Soviet Socialist Republic
 
Union of Soviet Socialist Republic
 
United Arab Emirates
 
United Kingdom
 
United States of America
 
Upper Volta
 
Uruguay
 
Uzbek Soviet Socialist Republic
 
Vanuatu (from 18 February)
 
Vatican City
 
Venezuela
 
Vietnam
 
Western Samoa
 
North Yemen
 
South Yemen
 
Yugoslavia
 
Zaire
 
Zambia
 
Zimbabwe (from 18 April)

Colonies, concessions, possessions, protectorates, mandates and territories

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(until 17 April; United Kingdom)}}

 
Ashmore and Cartier Islands (Australia)
 
Australian Antarctic Territory (Australia)
 
Christmas Island (Australia)
 
Cocos (Keeling) Islands (Australia)
 
Coral Sea Islands (Australia)
 
Heard Island and McDonald Islands (Australia)
 
Jervis Bay Territory (Australia)
 
Norfolk Island (Australia)
 
Greenland (Denmark)
 
Faroe Islands (Denmark)
 
Greenland (Denmark)
 
Åland Islands (Finland)
 
French Polynesia (France)
 
Gambier Islands (France)
 
Marquesas Islands (France)
 
Martinique (France)
 
New Hebrides (until 18 February; France)
 
Tuamotus (France)
 
Wallis and Futuna (France)
 
Chuuk (Micronesia)
 
Kosrae (Micronesia)
 
Pohnpei (Micronesia)
 
Netherlands Antilles (Netherlands)
 
Cook Islands (New Zealand)
 
Niue (New Zealand)
 
Azores (Portugal)
 
Macau (Portugal)
 
Madeira (Portugal)
 
Canary Islands (Spain)
 
Ceuta (Spain)
 
Antigua (United Kingdom)
 
Belize (United Kingdom)
 
Bermuda (United Kingdom)
 
British Antarctic Territory (United Kingdom)
 
British Virgin Islands (United Kingdom)
 
Brunei (United Kingdom)
 
Cayman Islands (United Kingdom)
 
Falkland Islands (United Kingdom)
 
Gibraltar (United Kingdom)
 
Guernsey (United Kingdom)
 
Herm (United Kingdom)
 
Hong Kong (United Kingdom)
 
Isle of Man (United Kingdom)
 
Jersey (United Kingdom)
 
Montserrat (United Kingdom)
 
New Hebrides (until 18 February; United Kingdom)
 
Saint Christopher-Nevis-Anguilla (until 13 April; United Kingdom)/Saint Christopher and Nevis (from 13 April; United Kingdom)
 
Saint Helena (United Kingdom)
 
Sark (United Kingdom)
 
Turks and Caicos Islands (United Kingdom)
 
American Samoa (United States)
 
Guam (United States)
 
Northern Mariana Islands (United States)
 
Puerto Rico (United States)
 
Trust Territory of the Pacific Islands (United States)
 
United States Virgin Islands (United States)

Australian states

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Aboriginal Australians
 
Bumbunga
 
New South Wales
 
Northern Territory
 
Queensland
 
South Australia
 
Tasmania
 
Victoria
 
Western Australia

Canadian states

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Alberta
 
British Columbia
 
Manitoba
 
New Brunswick
 
Newfoundland (until 6 June)
 
Newfoundland (from 6 June)
 
Northwest Territories
 
Nova Scotia
 
Ontario
 
Prince Edward Island
 
Quebec
 
Saskatchewan
 
Yukon Territory

Sovereign U.S. states

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Alabama
 
Alaska
 
Arizona
 
Arkansas
 
California
 
Colorado
 
Connecticut
 
Delaware
 
Florida
 
Georgia
 
Hawaii
 
Idaho
 
Illinois
 
Indiana
 
Iowa
 
Kansas
 
Kentucky
 
Louisiana
 
Maine
 
Maryland
 
Massachusetts
 
Michigan
 
Minnesota
 
Mississippi
 
Missouri
 
Montana
 
Nebraska
 
Nevada
 
New Hampshire
 
New Jersey
 
New Mexico
 
New York
 
North Carolina
 
North Dakota
 
Ohio
 
Oklahoma
 
Oregon
 
Pennsylvania
 
Rhode Island
 
South Carolina
 
South Dakota
 
Tennessee
 
Texas
 
Utah
 
Vermont
 
Virginia
 
Washington
 
West Virginia
 
Wisconsin
 
Wyoming

Non-UN members or observers

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Northern Cyprus
 
Sahrawi Arab Democratic Republic
 
Timor Timur

Other entities

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Democratic People's Republic of Angola
 
Antarctica
 
Bophuthatswana
 
Rwenzururu
 
San Juan
 
Sumatra
 
Tafea (Febuary 15 to May 26, 1980)
 
Tibet
 
Transkei
 
Venda
 
Vemerana (May 27 to July 24, 1980)

International organizations

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African and Malagasy Union
 
Association of Southeast Asian Nations
 
CARICOM
 
Comecon
 
Commonwealth of Nations
 
European Coal and Steel Community (until December 31, 1980)
 
European Union
 
Federation of Vexillological Associations
 
Latin American Parliament
 
League of Arab States
 
North Atlantic Treaty Organization
 
Olympic Movement
 
Organization of African Unity
 
Organization of American States
 
Organization of the Petroleum Exporting Countries
 
Red Crescent
 
Red Cross
 
Red Lion and Sun (until July 29, 1980)
 
Red Magen David
 
Scout Movement
 
South African Development Coordination Conference (from April 1, 1980)
 
United Nations

Other culturals

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Buddhism
 
Esperanto
 
Mohawk Warrior Society
 
Pan-African Flag
 
Pride Flag
 
Romani