This is a list of sovereign states in the 1840s, giving an overview of states around the world during the period between 1 January 1840 and 31 December 1849. It contains entries, arranged alphabetically, with information on the status and recognition of their sovereignty. It includes widely recognized sovereign states, entities which were de facto sovereign but which were not widely recognized by other states.
Sovereign states
A Abdelkader – Emirate of Abdelkader – Principality of Andorra Anhalt-Bernburg – Duchy of Anhalt-Bernburg Anhalt-Dessau – Duchy of Anhalt-Dessau Anhalt-Köthen – Duchy of Anhalt-Köthen Ankole – Kingdom of Ankole Annam – Empire of Annam Anziku – Anziku Kingdom – Argentine Confederation Aro – Aro Confederacy – Asante Union – Austrian Empire
B Baden – Grand Duchy of Baden Baguirmi – Kingdom of Baguirmi Bambara – Bambara Empire Baol – Kingdom of Baol Basutoland – Kingdom of Basutoland – Kingdom of Bavaria – Kingdom of Belgium – Benin Empire Bhutan – Kingdom of Bhutan Bolivia – Bolivian Republic Bornu – Bornu Empire – Empire of Brazil Bremen – Free City of Bremen Brunei – Sultanate of Brunei – Duchy of Brunswick Buganda – Kingdom of Buganda Bukhara – Emirate of Bukhara Bunyoro – Kingdom of Bunyoro-Kitara Burma – Kingdom of Burma Burundi – Kingdom of Burundi
C Cambodia – Kingdom of Cambodia Cayor – Kingdom of Cayor – Republic of Chile China – Great Qing Empire Comancheria → → → Costa Rica Free State of Costa Rica Republic of Costa Rica
D Dahomey – Kingdom of Dahomey Dar al Kuti – Sultanate of Dar Al Kuti Denmark – Kingdom of Denmark → Dominican Republic – Dominican Republic
E Ecuador – Republic of Ecuador El Salvador – El Salvador – Ethiopian Empire
F Fiji – Tui Viti → → France Kingdom of France French Republic Frankfurt – Free City of Frankfurt Futa Jallon – Imamate of Futa Jallon Futa Toro – Imamate of Futa Toro
G Garo – Kingdom of Garo Gomma – Kingdom of Gomma Greece – Kingdom of Greece → Guatemala – Republic of Guatemala Gumma – Kingdom of Gumma
H → Haiti Republic of Haiti Empire of Haiti – Free city of Hamburg Hanover – Kingdom of Hanover → – Kingdom of Hawaii Hesse-Darmstadt – Grand Duchy of Hesse and by Rhine Hesse-Homburg – Landgraviate of Hesse-Homburg Hesse-Kassel – Electorate of Hesse Hohenzollern-Hechingen – Principality of Hohenzollern-Hechingen Hohenzollern-Sigmaringen – Principality of Hohenzollern-Sigmaringen Holstein – Duchy of Holstein – Republic of Honduras Hyderabad State – State of Hyderabad
J Jabal Shammar – Emirate of Jabal Shammar Janjero – Kingdom of Janjero Japan – Tokugawa shogunate Jimma – Kingdom of Jimma Johor – Johor Sultanate – Jolof Kingdom
K Kaabu – Kingdom of Kaabu Kabul – Emirate of Kabul Kaffa – Kingdom of Kaffa Kénédougou – Kénédougou Kingdom Khasso – Kingdom of Khasso Khiva – Khanate of Khiva Kokand – Khanate of Kokand Kong – Kong Empire Kongo – Kingdom of Kongo Korea – Kingdom of Great Joseon Koya Temne – Kingdom of Koya
L – Principality of Liechtenstein Limburg – Duchy of Limburg Limmu-Ennarea – Kingdom of Limmu-Ennarea Lippe – Principality of Lippe-Detmoldt Loango – Kingdom of Loango Luba – Luba Empire
Lübeck – Free City of Lübeck Lunda – Lunda Empire – Grand Duchy of Luxembourg
M Maldives – Sultanate of Maldives Manipur – Kingdom of Manipur Massina – Massina Empire Matabeleland – Matabele Kingdom Mecklenburg-Schwerin – Grand Duchy of Mecklenburg-Schwerin Mecklenburg-Strelitz – Grand Duchy of Mecklenburg-Strelitz → Mexico Centralist Republic Second Federal Republic Mindanao – Sultanate of Maguindanao Modena – Duchies of Modena and Reggio Moldavia – Principality of Moldavia – Principality of Monaco Montenegro – Prince-Bishopric of Montenegro Morocco – Sultanate of Morocco
N Najd – Emirate of Najd Najran – Principality of Najran Nassau – Duchy of Nassau Natalia – Natalia Republic Nepal – Kingdom of Nepal – Kingdom of the Netherlands New Granada – Republic of New Granada Nicaragua – Republic of Nicaragua Norway – Kingdom of Norway (in personal union with Sweden)
O Oldenburg – Grand Duchy of Oldenburg → – Sublime Ottoman State Ouaddai – Ouaddai Empire Oyo – Oyo Empire
P Pahang – Sultanate of Pahang – States of the Church → – Republic of Paraguay – Duchy of Parma, Piacenza and Guastalla – Sultanate of Perak – Persian Empire – Peruvian Republic → Portugal – Kingdom of Portugal – Kingdom of Prussia Punjab – Sikh Empire
R Rapa Nui – Kingdom of Rapa Nui Reuss Elder Line – Principality of Reuss Elder Line Reuss Junior Line – Principality of Reuss Junior Line Russia – Russian Empire Rwanda – Kingdom of Rwanda – Kingdom of Ryūkyū
S Samoa – Kingdom of Samoa – Most Serene Republic of San Marino – Kingdom of Sarawak Sardinia – Kingdom of Sardinia Saxe-Altenburg – Duchy of Saxe-Altenburg Saxe-Coburg-Gotha – Duchy of Saxe-Coburg and Gotha Capital: Coburg, Gotha Saxe-Meiningen – Duchy of Saxe-Meiningen Saxe-Weimar-Eisenach – Grand Duchy of Saxe-Weimar-Eisenach Saxony – Kingdom of Saxony Schaumburg-Lippe – Principality of Schaumburg-Lippe Schleswig – Duchy of Schleswig Capital: Schleswig, Flensburg, Copenhagen Schwarzburg-Rudolstadt – Principality of Schwarzburg-Rudolstadt Schwarzburg-Sondershausen – Principality of Schwarzburg-Sondershausen Selangor – Sultanate of Selangor Serbia – Principality of Serbia Siam – Kingdom of Siam Sikkim – Chogyalate of Sikkim Sokoto – Sokoto Caliphate Spain – Kingdom of Spain Sulu – Sultanate of Sulu Sweden – Kingdom of Sweden (in personal union with Norway) Switzerland Swiss Confederation Swiss Confederation
T → – Kingdom of Tahiti Tonga – Tu'i Tonga Toro – Toro Kingdom Toucouleur – Toucouleur Empire Tuscany – Grand Duchy of Tuscany Two Sicilies – Kingdom of the Two Sicilies
U – United Kingdom of Great Britain and Ireland – United States of America United States of the Ionian Islands – United States of the Ionian Islands – Eastern Republic of Uruguay
V – Republic of Venezuela
W Waldeck-Pyrmont – Principality of Waldeck and Pyrmont Welayta – Kingdom of Welayta Württemberg – Kingdom of Württemberg
Z Zululand – Kingdom of the Zulus Capital: kwaBulawayo, umGungundlovu, Ulundi
States claiming sovereignty Aceh – Sultanate of Aceh Germany – German Empire Goust – Republic of Goust Hungary – Hungarian State Riogranda – Riograndense Republic Rio Grande – Republic of the Rio Grande Tavolara – Kingdom of Tavolara – Republic of Texas – Republic of Yucatán
See also List of Bronze Age states List of Iron Age states List of Classical Age states List of states during Late Antiquity List of states during the Middle Ages