Soviet Union

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Transcaucasian Socialist Federative Soviet Republic (TSFSR)

Transcaucasian
SFSR

Transcaucasian SFSR (1922-1925)

1922–1925

Transcaucasian SFSR

Transcaucasian SFSR (1925-1936)

1925–1936

First Republic of Armenia

Armenia

1918–1922

Armenian
SSR

1922

Armenian SSR

Armenia (1922-1937)

1922–1937

Armenian
SSR

1937–1940

Armenian
SSR

Armenia (1940-1952)

1940–1952

Armenian
SSR

1952–1990

Republic of Armenia

Armenia

1990–

Azerbaijan
Democratic
Republic

1918

Azerbaijan
Democratic
Republic

1918–1920

Azerbaijan
SSR

1920

Azerbaijan
SSR

1920–1921

Azerbaijan
SSR

Azerbaijan (1921-1922)

1921–1922

Azerbaijan
SSR

1922–1927

Azerbaijan
SSR

Azerbaijan (1927-1931)

1927–1931

Azerbaijan
SSR

1931–1937

Azerbaijan
SSR

Azerbaijan (1937-1940)

1937–1940

Azerbaijan
SSR

Azerbaijan (1940-1952)

1940–1952

Azerbaijan
SSR

Azerbaijan (1952-1990)

1952–1990

Republic of Azerbaijan

Azerbaijan (1991-2013)

1991–2013

Republic of
Azerbaijan

Azerbaijan

2013–

Democratic Republic of Georgia

1918–1921

Georgian SSR

1921–1922

Georgian SSR

Georgia (1922-1937)

1922–1937

Georgian SSR

Georgia (1937-1951)

1937–1951

Georgian SSR

Georgia (1951-1990)

1951–1990

Georgian SSR

Georgia (1991-2004)

1990–1991

Republic of
Georgia

Georgia (1991-2004)

1991–2004

Republic of
Georgia

2004–

Baltic States

Republic of Estonia

Estonia

1918–1939

Soviet Estonia

Estonia (1940-1953)

1940–1941

German Occupied Estonia

Germany 1935-1945

1941–1944

Soviet Estonia

Estonia (1940-1953)

1944–1953

Soviet Estonia

Estonia (1953-1990)

1953–1990

Republic of Estonia

Estonia

1990–

Latvian SSR

1918–1920

Republic of Latvia

Latvia

1920–1940

Republic of Latvia

Latvia

1920–1940

Latvian SSR

Latvia (1940-1953)

1940–1941

German Occupied Latvia

Germany 1935-1945

1940–1941

Latvian SSR

Latvia (1940-1953)

1944–1953

Latvian SSR

Latvia 1953-1990

1953–1990

Latvian SSR

Latvia

1990–

Lithuanian SSR

1918–1919

Republic of Lithuania

Lithuania

1919–1940

Lithuanian SSR

1940–1941

German Occupied Lithuania

Germany 1935-1945

1941–1944

Lithuanian SSR

1944–1953

Lithuanian SSR

Lithuania 1953-1988

1953–1988

Lithuanian SSR

Lithuania

1988–

Republic of Central Lithuania

Central Lithuania

1920–1922

Part of Poland

Poland

1922–1939

Belarus

Belarussian People’s Republic

Belarus 1918, 1991-1995

1918

Lithuanian-Byelorussian SSR

1919

Byelorussian SSR

1919–1927

Byelorussian SSR

1927–1937

Byelorussian SSR

1937–1951

Byelorussian SSR

Belaus (1951-1991)

1951–1991

Republic of
Kazakhstan

Byelorussian SSR

Belarus 1918, 1991-1995

1991

Republic of Belarus

Belarus 1918, 1991-1995

1991–1995

Republic of Belarus

Belarus

1995–

Kazakhstan

Kazakh SSR

Kazakhstan 1920-1936

1920–1936

Kazakh SSR

Kazakhstan 1937-1940

1937–1940

Kazakh SSR

Kazakhstan 1940-1953

1940–1953

Kazakh SSR

Kazakh SSR 1953-1991, Kazakhstan 1991-1992

1953–1991

Kazakh SSR 1953-1991, Kazakhstan 1991-1992

1991–1992

Republic of Kazakhstan

Kazakhstan

1992–

Kyrgyzstan

Kirghiz Autonomous SSR

Kyrgyzstan 1926-1936

1929–1936

Kyrgyz SSR

Kyrgyzstan 1936-1940

1936–1940

Kyrgyz SSR

Kyrgyzstan 1940-1952

1940–1952

Kyrgyz SSR

1952–1991

Kyrgyz Republic

1991–1992

Kyrgyz Republic

Kyrgyzstan 1992-2023

1992–2023

Kyrgyz Republic

Kyrgyzstan 2023-

2023–

Tajikistan

Tajik SSR

Tajik SSR (1953-1992)

1953–1992

Republic of Tajikistan

1992–

Turkmenistan

Turkmen SSR

1926–1937

Turkmen SSR

Turkmenistan 1937-1940

1937–1940

Turkmen SSR

1940–1953

Turkmen SSR

Turkmenistan 1953-1992

1953–1973

Turkmenistan

1992–1997

Turkmenistan

Turkmenistan 1997-

1997–2001 (1:2)

Turkmenistan

Turkmenistan 1997-

2001– (2:3)

Ukraine

Ukrainian SSR

Ukraine 1918

1917

Ukrainian People’s Republic of Soviets

Ukraine 1917-1918

1917–1919

Ukrainian SSR

Ukraine 1919-1929

1919–1929

Ukrainian SSR

Ukraine 1929-1937

1929–1937

Ukrainian SSR

Ukraine 1937-1949

1937–1949

Ukrainian SSR

Ukraine 1949-1991

1949–1991

Ukraine

Ukraine 1949-1991

1991–1992

Ukraine

1992–2006

Ukraine

Ukraine

2006–

Uzbekistan

Uzbek SSR

Uzbekistan 1925-1927

1925–1927

Uzbek SSR

1927–1929

Uzbek SSR

1929–1931

Uzbek SSR

Uzbekistan 1931-1935

1931–1935

Uzbek SSR

Uzbekistan 1934-1935

1934–1935

Uzbek SSR

Uzbekistan 1935-1937

1935–1937

Uzbek SSR

1938–1939

Uzbek SSR

Uzbekistan 1941-1952

1941–1952

Uzbek SSR

Uzbekistan 1952-1991

1952–1991

Uzbekistan

Uzbekistan

1992–