Sovereign-state flags in 1917

Sovereign states

Albania

Andorra - variant

Andorra - variant

Argentina

Asir (from August)

Aussa

Australia

Austria-Hungary

Belgium

Bolivia

Brazil

Bulgaria

Canada

Chile

China

Colombia

Costa Rica

Cuba

Denmark

Dominican Republic

Ecuador

El Salvador

Ethiopia

Finland (from 6 December)

France

Germany

Greece

Guatemala

Ha'il

Haiti

Hejaz

Honduras

Italy

Japan

Liberia

Liechtenstein

Luxembourg

Mbunda (until 1917)

Mexico

Monaco

Mongolia

Montenegro

Mountain Republic (from 6 March)

Muscat and Oman

Nejd and Hasa

Netherlands

Newfoundland

New Zealand

Nicaragua

Norway

Ottoman Empire

Panama

Paraguay

Paraguay

Persia

Peru

Poland (from 14 January)

Portugal

Romania

Russia (until March)

Russia (from March)

San Marino

Serbia

Siam (until 28 September)

Siam (from 28 September)

South Africa

Spain

Sweden

Switzerland

Tibet

United Kingdom

United States

Upper Asir

Uruguay

Venezuela

Colonies, concessions, possessions, protectorates, mandates and territories

Bosnia and Herzegovina (Austria-Hungary)

Territory of New Guinea (Australia)

Norfolk Island (Australia)

Papua (Australia)

Tianjin (until 14 August; Austria-Hungary)

Belgian Congo (Belgium)

Ruanda-Urundi (Belgium)

Tianjin (Belgium)

Danish West Indies (until 31 March; Denmark)

Greenland (Denmark)

Iceland (Denmark)

Anglo-Egyptian Sudan (Egypt and United Kingdom)

French Algeria (France)

French Cameroon (France)

French Equatorial Africa (France)

French Guiana (France)

French India (France)

French Indochina (France)

French Madagascar (France)

French Morocco (France)

French Polynesia (France)

French Somaliland (France)

French Togoland (France)

French Tunisia (France)

French West Africa (France)

Gambier Islands (France)

Guadeloupe (France)

Hankou (France)

Martinique (France)

New Caledonia (France)

New Hebrides (France)

Réunion (France)

Saint Pierre and Miquelon (France)

Shanghai (France)

Tientsin (France)

Ubangi-Shari (France)

Wallis and Futuna (France)

German East Africa (Germany)

German New Guinea (Germany)

German Samoa (Germany)

German South-West Africa (Germany)

Hankou (until 16 March; Germany)

Tientsin (until August; Germany)

Amoy (Italy)

Italian Cyrenaica (Italy)

Italian Eritrea (Italy)

Italian Somaliland (Italy)

Italian Tripolitania (Italy)

Shanghai (Italy)

Tientsin (Italy)

Chongqing (Japan)

Japanese Korea (Chōsen) (Japan)

Hangzhou (Japan)

Hankou (Japan)

Karafuto (Japan)

Kwantung (Japan)

Shashi (Japan)

South Seas Mandate (Japan)

Suzhou (Japan)

Taiwan (Japan)

Tientsin (Japan)

Isla de la Pasión (Mexico)

Curaçao and Dependencies (Netherlands)

Dutch East Indies (Netherlands)

Surinam (Netherlands)

Cook Islands (New Zealand)

Niue (New Zealand)

Sverdrup Islands (Norway)

Portuguese Cape Verde (Portugal)

Portuguese Macau (Portugal)

Portuguese East Africa (Portugal)

Portuguese Guinea (Portugal)

Portuguese India (Portugal)

Portuguese Timor (Portugal)

Portuguese West Africa (Portugal)

Fort of São João Baptista de Ajudá (Portugal)

Portuguese São Tomé and Príncipe (Portugal)

Bukhara (Russia)

Khiva (Russia)

Uryankhay Krai (Russia)

Tientsin (Russia)

Finland (until 6 December; Russia)

Elobey, Annobón, and Corisco (Spain)

Fernando Poo (Spain)

Río Muni (Spain)

Spanish Morocco (Spain)

Spanish North Africa (Spain)

Spanish Sahara (Spain)

South West Africa (South Africa)

Aden (United Kingdom)

Afghanistan (United Kingdom)

Amoy (United Kingdom)

Ascension Island (United Kingdom)

Bahamas (United Kingdom)

Bahrain (United Kingdom)

Baker Island (United Kingdom)

Barbados (United Kingdom)

Basutoland (United Kingdom)

Bechuanaland (United Kingdom)

Bermuda (United Kingdom)

Bhutan (United Kingdom)

British Cameroon (United Kingdom)

British Ceylon (United Kingdom)

British Cyprus (United Kingdom)

British East Africa (United Kingdom)

British Guiana (United Kingdom)

British Honduras (United Kingdom)

British Hong Kong (United Kingdom)

British Jamaica (United Kingdom)

British Leeward Islands (United Kingdom)

British Mauritius (United Kingdom)

British Somaliland (United Kingdom)

British Togoland (United Kingdom)

British Trinidad and Tobago (United Kingdom)

British Western Pacific Territories (United Kingdom)

British Windward Islands (United Kingdom)

Brunei (United Kingdom)

Egypt (United Kingdom)

Falkland Islands (United Kingdom)

Federated Malay States (United Kingdom)

Gambia (United Kingdom)

Gibraltar (United Kingdom)

Gold Coast (United Kingdom)

Graham Land (United Kingdom)

Guernsey (United Kingdom)

Hankou (United Kingdom)

Heard Island and McDonald Islands (United Kingdom)

India (United Kingdom)

Isle of Man (United Kingdom)

Jarvis Island (United Kingdom)

Jersey (United Kingdom)

Jiujiang (United Kingdom)

Johor (United Kingdom)

Kedah (United Kingdom)

Kelantan (United Kingdom)

Kuwait (United Kingdom)

Maldives (United Kingdom)

Malta (United Kingdom)

Nepal (United Kingdom)

Nigeria (United Kingdom)

North Borneo (United Kingdom)

Northern Rhodesia (United Kingdom)

Nyasaland (United Kingdom)

Perlis (United Kingdom)

Qatar (United Kingdom)

Rhodesia (United Kingdom)

Saint Helena (United Kingdom)

Sarawak (United Kingdom)

Seychelles (United Kingdom)

Sierra Leone (United Kingdom)

Sikkim (United Kingdom)

South Orkney Islands (United Kingdom)

South Shetland Islands (United Kingdom)

Straits Settlements (United Kingdom)

Suez Canal (United Kingdom)

Swaziland (United Kingdom)

Tanganyika (United Kingdom)

Terengganu (United Kingdom)

Tientsin (United Kingdom)

Tristan da Cunha (United Kingdom)

Trucial States (United Kingdom)

Uganda (United Kingdom)

Union Islands (United Kingdom)

Victoria Land (United Kingdom)

Weihai (United Kingdom)

Zanzibar (United Kingdom)

Zhenjiang (United Kingdom)

Alaska (United States)

American Samoa (United States)

Bajo Nuevo Bank (United States)

Corn Islands (United States)

Guam (United States)

Hawaii (United States)

Howland Island (United States)

Johnston Atoll (United States)

Kingman Reef (United States)

Middlebrook Island (United States)

Midway Atoll (United States)

Navassa Island (United States)

Panama Canal Zone (United States)

Philippine Islands (United States)

Puerto Rico (United States)

Quita Sueño Bank (United States)

Roncador Bank (United States)

Serrana Bank (United States)

Serranilla Bank (United States)

Swan Islands (United States)

United States Virgin Islands (from 31 March; United States)

Wake Island (United States)

Australian states

New South Wales

Queensland

South Australia

Tasmania

Victoria

Western Australia

Canadian states

Alberta

British Columbia

Manitoba

New Brunswick

Northwest Territories

Nova Scotia

Ontario

Prince Edward Island

Quebec

Saskatchewan

Yukon Territory

Sovereign U.S. states

Alabama

Arizona (until 27 February)

Arizona (from 27 February)

Arkansas

California

Colorado

Connecticut

Delaware

Florida

Georgia

Idaho

Illinois

Indiana (until 1917)

Indiana (from 1917)

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska (until 1917)

Nebraska (from 1917)

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 (until 31 January)

Wyoming (from 31 January)

Other entities

Alash (from 1917)

Altai (from 1917)

Crimea (from 1917)

Kokland (from 1917)

Moldova (from 1917)

Ukrainian People's Republic of Soviets (from 1917)

Other culturals

Buddhism

Esperanto