List of countries in the 1820s

## Sovereign states
### A
*  – 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 
*  Argentina - United Provinces of the River Plate 
* 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
*  – Benin Empire
*  – Kingdom of Bhutan
*  →  Bolivia – Bolivian Republic (from August 6, 1825)
* Bornu – Bornu Empire
*  – Empire of Brazil 
*  – 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
*  →  Central America
** United Provinces of Central America 
** Federal Republic of Central America 
* 
** State of Chile 
** Republic of Chile 
* China – Great Qing Empire
*  →  →  Colombia – Republic of Colombia
*  Cospaia – Republic of Cospaia

### D
*  Dahomey – Kingdom of Dahomey
*  Denmark – Kingdom of Denmark
*  Durrani – Durrani Empire 

### E
*  – 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
* Gumma – Kingdom of Gumma

### H
*  → 
** Kingdom of Haiti 
** Republic of Haiti (from October 8, 1820)
*  – Free City of Hamburg
*   – 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

### I
*  Ionian Islands – United States of the Ionian Islands

### J
* 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
* 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
*  – Grand Duchy of Luxembourg

### M
*  Madawaska – Republic of Madawaska 
*  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
*  Mexico 
** Mexican Empire 
** Mexican Republic 
*  Mindanao – Sultanate of Maguindanao
*  Modena – Duchies of Modena and Reggio
*  Moldavia – Principality of Moldavia
*  – Principality of Monaco
*  Montenegro – Prince-Bishopric of Montenegro
*  – Sultanate of Morocco

### N
*  Nassau – Duchy of Nassau
*  Nepal – Kingdom of Nepal
*  – United Kingdom of the Netherlands
*  Norway – Kingdom of Norway (in a 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
*  Perak – Sultanate of Perak
*  Persia – Persian Empire
*  →  →  Peru 
** Supreme Governing Junta 
** Peruvian Republic 
*  Portugal – Kingdom of Portugal 
*  Portugal, Brazil and the Algarves – United Kingdom of Portugal, Brazil and the Algarves 
*  – Kingdom of Prussia
*  Punjab – Sikh Empire

### R
* Rapa Nui – Kingdom of Rapa Nui
*  Reuss-Ebersdorf – Principality of Reuss-Ebersdorf 
*  Reuss Elder Line – Principality of Reuss Elder Line
*  Reuss-Lobenstein – Principality of Reuss-Lobenstein 
*  Reuss-Lobenstein-Ebersdorf – Principality of Reuss-Lobenstein-Ebersdorf 
*  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 Sardinia
*  Saxe-Altenburg – Duchy of Saxe-Altenburg 
* Saxe-Coburg-Saalfeld – Duchy of Saxe-Coburg-Saalfeld 
*  Saxe-Coburg-Gotha – Duchy of Saxe-Coburg and Gotha 
*  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
*  – 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
*  Toro – Toro Kingdom 
*  Tuscany – Grand Duchy of Tuscany
*  – Kingdom of the Two Sicilies

### U
*  – United Kingdom of Great Britain and Ireland
*  →  – United States of America

### W
*  Waldeck-Pyrmont – Principality of Waldeck and Pyrmont
* Welayta – Kingdom of Welayta
*  – Kingdom of Württemberg

### Z
* Zululand – Kingdom of the Zulus

## States claiming sovereignty
* Equator – Confederation of the Equator 
* Goust – Republic of Goust
*  Greece – Hellenic Republic 
*  Muskogee – State of Muskogee
*  Soran – Soran Emirate