Sovereign-state flags in 1901

Sovereign states

Aceh Sultanate

Acre

Andorra - variant

Andorra - variant

Angoche

Ankole (until 25 October)

Argentina

Aro

Ashanti

Aussa

Australia (until 3 September)

Australia (from 3 September)

Austria-Hungary

Bali

Belgium

Bhutan

Bolivia

Brakna

Brazil

Bulgaria

Busoga

Canada

Chile

China

Chokwe

Colombia

Congo

Costa Rica

Darfur

Dendi (until 1901)

Denmark

Dhala

Dominican Republic

Ecuador

El Salvador

Ethiopia

France

Geledi

Germany

Greece

Guatemala

Gumma

Haʾil

Haiti

Honduras

Igala (until 1901)

Igara (until 1901)

Italy

Japan

Johor Sultanate

Kajara (until 1901)

Kano

Kasanje

Kebbi

Korea

Liberia

Liechtenstein

Luxembourg

Mbunda

Mexico

Monaco

Montenegro

Morocco

Muscat and Oman

Mutayr

Netherlands

Newfoundland

New Zealand

Nicaragua

Norway

Nri

Nshenyi (until 1901)

Obwera (until 1901)

Orange Free State

Ottoman Empire

Paraguay

Paraguay (reverse)

Pattani

Persia

Peru

Philippines (until 23 March)

Portugal

Potiskum (until 1901)

Romania

Rujumbura

Rukiga (until 1901)

Russia

San Marino

Serbia

Setul Mambang Segara

Siam

Sokoto

Spain

Swaziland

Sweden

Switzerland

Tagant

Transvaal

Trarza

United Kingdom

United States

Upper Aulaqi Sheikhdom

Upper Aulaqi Sultanate

Upper Yafa

Uruguay

Venezuela

Wadai

Wajoq

Colonies, concessions, possessions, protectorates, mandates and territories

Danish West Indies (Denmark)

Faroe Islands (Denmark)

Greenland (Denmark)

Iceland (Denmark)

Anglo-Egyptian Sudan (Egypt and United Kingdom)

French Algeria (France)

French Chad (France)

French Comoros (France)

French Congo (France)

French Guiana (France)

French India (France)

French Indochina (France)

French Ivory Coast (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)

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)

Kamerun (Germany)

Tientsin (Germany)

Togoland (Germany)

Italian Eritrea (Italy)

Italian Somaliland (Italy)

Tientsin (from 1901; Italy)

Chongqing (Japan)

Hangzhou (Japan)

Hankou (Japan)

Shashi (Japan)

Suzhou (Japan)

Taiwan (Japan)

Tientsin (Japan)

Curaçao and Dependencies (Netherlands)

Dutch East Indies (Netherlands)

Surinam (Netherlands)

Cook Islands (from 1901)

Niue (from 1901)

Sverdrup Islands (Norway)

Crete (Ottoman Empire)

Egypt (Ottoman Empire)

Mecca (Ottoman Empire)

Qatar (Ottoman Empire)

Samos (Ottoman Empire)

Portuguese Cape Verde (Portugal)

Kongo (Portugal)

Portuguese East Africa (Portugal)

Portuguese Guinea (Portugal)

Portuguese India (Portugal)

Portuguese Macau (Portugal)

Portuguese São Tomé and Príncipe (Portugal)

Portuguese Timor (Portugal)

Portuguese West Africa (Portugal)

Fort of São João Baptista de Ajudá (Portugal)

Bukhara (Russia)

Khiva (Russia)

Tientsin (Russia)

Finland (Russia)

Champasak (Siam)

Elobey, Annobón, and Corisco (Spain)

Fernando Po (Spain)

Río Muni (Spain)

Spanish North Africa (Spain)

Spanish Sahara (Spain)

Aden (United Kingdom)

Afghanistan (until 1901; United Kingdom)

Afghanistan (from 1901; 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 (United Kingdom)

Basutoland (United Kingdom)

Bechuanaland (United Kingdom)

Bermuda (United Kingdom)

British Central Africa (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)

Cape Colony (United Kingdom)

Colony of Natal (United Kingdom)

Falkland Islands Dependencies (United Kingdom)

Federated Malay States (United Kingdom)

Gambia (United Kingdom)

Gibraltar (United Kingdom)

Gilbert and Ellice Islands (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)

Lagos (United Kingdom)

Maldives (United Kingdom)

Malta (United Kingdom)

Muscat and Oman (United Kingdom)

Nepal (United Kingdom)

Newfoundland (United Kingdom)

New Zealand (United Kingdom)

Niue (until 11 June; United Kingdom)

North Borneo (United Kingdom)

Northern Nigeria Protectorate (United Kingdom)

North-Eastern Rhodesia (United Kingdom)

New Guinea (United Kingdom)

Papua (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)

Southern Nigeria (United Kingdom)

Straits Settlements (United Kingdom)

Suez Canal (United Kingdom)

Terengganu (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)

Indian Territory (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)

Oklahoma (United States)

Palmyra Atoll (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)

Tientsin (United States)

Wake Island (United States)

Australian states

New South Wales

Queensland (until mid-1901)

Queensland (from mid-1901)

South Australia

Tasmania

Victoria (until mid-1901)

Victoria (from mid-1901)

Western Australia

Canadian states

British Columbia

Manitoba

New Brunswick

Northwest Territories

Nova Scotia

Ontario

Prince Edward Island

Quebec

Yukon Territory

Constituent U.S. states

Alabama

Arkansas

California

Colorado

Connecticut

Delaware

Florida

Georgia

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine (until 21 March)

Maine (from 21 March)

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New York (until 2 April)

New York (from 2 April)

North Carolina

North Dakota

Ohio

Oregon

Pennsylvania

Rhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

Other entities

Cruzob (until 5 May)

Dervish State

Khiva (from 27 February)

Negros (until 20 August)

Other culturals

Buddhism