List of sovereign states in 1820
| Sovereign states by year | ||
|---|---|---|
| List of sovereign states in 1819 | Events of 1820 | List of sovereign states in 1821 |
 |
Sovereign states
A
Andorra – 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- File:Early Nguyen Dynasty Flag.svg Annam – Empire of Annam
- Anziku – Anziku Kingdom
Argentina - United Provinces of the Río de la Plata
Aro – Aro Confederacy
Ashanti – Asante Union
Austria – Austrian Empire
B
Baden – Grand Duchy of Baden- Baguirmi – Kingdom of Baguirmi
- Bambara – Bambara Empire
- Baol – Kingdom of Baol
- Basutoland – Kingdom of Basutoland
Bavaria – Kingdom of Bavaria
Benin – Benin Empire- Bhutan – Kingdom of Bhutan
- Bornu – Bornu Empire
- Bremen – Free City of Bremen
Brunei – Sultanate of Brunei
Brunswick – 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
Chile - State of Chile- China – Great Qing Empire
Cospaia – Republic of Cospaia
D
E
Ethiopia – Ethiopian Empire
F
- Fiji – Tui Viti
France – Kingdom of France
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
Gran Colombia – Republic of Colombia- Gumma – Kingdom of Gumma
H
Haiti – Kingdom of Haiti (to October 8)
Hamburg – Free city of Hamburg- Hanover – Kingdom of Hanover
Hawaii – Kingdom of Hawaii
Hesse-Darmstadt – Grand Duchy of Hesse and by Rhine
Hesse-Homburg – Landgraviate of Hesse-Homburg
Hesse-Kassel (or Hesse-Cassel) – Electorate of Hesse
Hohenzollern-Hechingen – Principality of Hohenzollern-Hechingen- Hohenzollern-Sigmaringen – Principality of Hohenzollern-Sigmaringen
Holstein – Duchy of Holstein
J
- Janjero – Kingdom of Janjero
- Japan – Tokugawa shogunate
- Jimma – Kingdom of Jimma
- Johor – Johor Sultanate
- Jolof – Jolof Kingdom
K
- Kaabu – Kingdom of Kaabu
- 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- File:Coat of arms of Joseon Korea.gif Korea – Kingdom of Joseon
- Koya Temne – Kingdom of Koya
L
Liechtenstein – Principality of Liechtenstein- Limmu-Ennarea – Kingdom of Limmu-Ennarea
Lippe – Principality of Lippe-Detmoldt- Loango – Kingdom of Loango
- Luba – Luba Empire
Lubeck – Free City of Lubeck- Lunda – Lunda Empire
Luxembourg – Grand Duchy of Luxembourg
M
- Maldives – Sultanate of Maldives
- Manipur – Kingdom of Manipur
- Massina – Massina Empire
Mecklenburg-Schwerin – Grand Duchy of Mecklenburg-Schwerin- Mecklenburg-Strelitz – Grand Duchy of Mecklenburg-Strelitz
- Mindanao – Sultanate of Maguindanao
Modena – Duchies of Modena and Reggio
Moldavia - Principality of Moldavia
Monaco – Principality of Monaco
Montenegro - Prince-Bishopric of Montenegro
Morocco – Sultanate of Morocco
N
Nassau – Duchy of Nassau
Nepal - Kingdom of Nepal
Netherlands – United Kingdom of the Netherlands
Norway – Kingdom of Norway (in personal union with Sweden)
O
Oldenburg – Grand Duchy of Oldenburg
Ottoman Empire – Sublime Ottoman State- Ouaddai – Ouaddai Empire
- Oyo – Oyo Empire
P
Pahang – Sultanate of Pahang
Papal States – States of the Church
Paraguay – Republic of Paraguay
Parma – Duchy of Parma, Piacenza and Guastalla
Perak – Sultanate of Perak
Persia – Persian Empire
Portugal, Brazil and the Algarves – United Kingdom of Portugal, Brazil and the Algarves
Prussia – 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
Ryūkyū Kingdom – Kingdom of Ryūkyū
S
- Samoa – Kingdom of Samoa
San Marino – Most Serene Republic of San Marino
Sardinia – Kingdom of Sardinia- Saxe-Coburg-Saalfeld – Duchy of Saxe-Coburg-Saalfeld
Saxe-Gotha-Altenburg – Duchy of Saxe-Gotha-Altenburg- Saxe-Hildburghausen – Duchy of Saxe-Hildburghausen
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
Schwarzburg-Rudolstadt – Principality of Schwarzburg-Rudolstadt
Schwarzburg-Sondershausen – Principality of Schwarzburg-Sondershausen
Selangor – Sultanate of Selangor
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
T
- Tahiti – Kingdom of Tahiti
- Tonga – Tu'i Tonga
Tuscany – Grand Duchy of Tuscany
Two Sicilies – Kingdom of the Two Sicilies
U
United Kingdom – United Kingdom of Great Britain and Ireland
United States – United States of America
United States of the Ionian Islands – United States of the Ionian Islands
W
Waldeck-Pyrmont – Principality of Waldeck and Pyrmont- Welayta – Kingdom of Welayta
Württemberg – Kingdom of Württemberg
Z
- Zululand – Kingdom of the Zulus
