Sovereign-state flags in 1911

Sovereign states

Andorra - variant

Andorra - variant

Argentina

Australia

Aussa

Austria-Hungary

Belgium

Bolivia

Brazil

Bulgaria

Canada

Chile

China

Colombia

Costa Rica

Crete

Cuba

Darfur

Denmark

Dominican Republic

Ecuador

El Salvador

Ethiopia

France

Germany

Greece

Guatemala

Ha'il

Haiti

Honduras

Italy

Japan

Johor Sultanate

Liberia

Liechtenstein

Luxembourg

Mbunda

Mexico

Monaco

Mongolia (from 29 December)

Montenegro

Morocco

Muscat and Oman

Netherlands

Newfoundland

New Zealand

Nicaragua

Nri (until 1911)

Norway

Ottoman Empire

Panama

Paraguay

Paraguay

Persia

Peru

Portugal (until 30 June)

Portugal (from 30 June)

Riyadh

Romania

Russia

San Marino

Serbia

Setul Mambang Segara

Siam

South Africa

Spain

Sulu

Sweden

Switzerland

United Kingdom

United States

Uruguay

Venezuela

Wadai

Colonies, concessions, possessions, protectorates, mandates and territories

Northern Territory (from 1 January; Australia)

Papua (Australia)

Tianjin (Austria-Hungary)

Belgian Congo (Belgium)

Tianjin (Belgium)

Danish West Indies (Denmark)

Greenland (Denmark)

Iceland (Denmark)

Anglo-Egyptian Sudan (Egypt and United Kingdom)

French Algeria (France)

French Comoros (France)

French Equatorial Africa (France)

French Guiana (France)

French India (France)

French Indochina (France)

French Madagascar (France)

French Polynesia (France)

French Somaliland (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)

Wallis and Futuna (France)

German East Africa (Germany)

German Kiautschou (Germany)

German New Guinea (Germany)

German Samoa (Germany)

German South-West Africa (Germany)

Hankou (Germany)

Kamerun (Germany)

Tientsin (Germany)

Togoland (Germany)

Amoy (Italy)

Italian Cyrenaica (from 5 November; Italy)

Italian Eritrea (Italy)

Italian Somaliland (Italy)

Italian Tripolitania (from 5 November; Italy)

Shanghai (Italy)

Tientsin (Italy)

Chongqing (Japan)

Japanese Korea (Chōsen) (Japan)

Hangzhou (Japan)

Hankou (Japan)

Karafuto (Japan)

Kwantung (Japan)

Shashi (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)

Crete (Ottoman Empire)

Egypt (Ottoman Empire)

Mecca (Ottoman Empire)

Qatar (Ottoman Empire)

Samos (Ottoman Empire)

Portuguese Cape Verde (until 30 June; Portugal)

Portuguese Cape Verde (from 30 June; Portugal)

Kongo (Portugal)

Portuguese Macau (until 30 June; Portugal)

Portuguese Macau (from 30 June; Portugal)

Portuguese East Africa (until 30 June; Portugal)

Portuguese East Africa (from 30 June; Portugal)

Portuguese Guinea (until 30 June; Portugal)

Portuguese Guinea (from 30 June; Portugal)

Portuguese India (until 30 June; Portugal)

Portuguese India (from 30 June; Portugal)

Portuguese Timor (until 30 June; Portugal)

Portuguese Timor (from 30 June; Portugal)

Portuguese West Africa (until 30 June; Portugal)

Portuguese West Africa (from 30 June; Portugal)

Fort of São João Baptista de Ajudá (until 30 June; Portugal)

Fort of São João Baptista de Ajudá (from 30 June; Portugal)

Portuguese São Tomé and Príncipe (until 30 June; Portugal)

Portuguese São Tomé and Príncipe (from 30 June; Portugal)

Bukhara (Russia)

Khiva (Russia)

Tientsin (Russia)

Finland (Russia)

Elobey, Annobón, and Corisco (Spain)

Fernando Poo (Spain)

Río Muni (Spain)

Spanish North Africa (Spain)

Spanish Sahara (Spain)

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)

Barotziland–North-Western Rhodesia (until 1911; United Kingdom)

Basutoland (United Kingdom)

Bechuanaland (United Kingdom)

Bermuda (United Kingdom)

Bhutan (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 Trinidad and Tobago (United Kingdom)

British Western Pacific Territories (United Kingdom)

British Windward Islands (United Kingdom)

Brunei (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)

Kedah (United Kingdom)

Kelantan (United Kingdom)

Kuwait (United Kingdom)

Maldives (United Kingdom)

Malta (United Kingdom)

Nepal (United Kingdom)

North Borneo (United Kingdom)

Northern Nigeria (United Kingdom)

North-Eastern Rhodesia (until 1911; United Kingdom)

Northern Rhodesia (from 1911; United Kingdom)

Nyasaland (United Kingdom)

Perlis (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)

Southern Nigeria Protectorate (United Kingdom)

Straits Settlements (United Kingdom)

Suez Canal (United Kingdom)

Swaziland (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)

Arizona (United States)

Bajo Nuevo Bank (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)

New Mexico (United States)

Palmyra Atoll (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)

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

Arkansas

California (until mid-1911)

California (from mid-1911)

Colorado (until 4 December)

Colorado (from 4 December)

Connecticut

Delaware

Florida

Georgia

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New York

North Carolina

North Dakota (until 11 March)

North Dakota (from 11 March)

Ohio

Oklahoma (until 1911)

Oklahoma (from 1911)

Oregon

Pennsylvania

Rhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

Other entities

Uryankhay Republic (from date unknown)

Other culturals

Al-Mountada Al-Adabi

Buddhism

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