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• Kalinin, Mihail
• Kalinin, Mihail
• Kamenev, Lev
• Karl I.
• Katanga: Archontology
• Katanga: Heads of State: 1960-1963
• Katanga: Polity Style: 1880-1963
• Katanga: Rulers: 1880-1900
• Kazakhstan (Soviet Republic): Archontology
• Kazakhstan (Soviet Republic): Chairman of the Supreme Council: 1990
• Kazakhstan (Soviet Republic): Chairmen of the Central Executive Committee: 1920-1938
• Kazakhstan (Soviet Republic): Chairmen of the Presidium of the Supreme Council: 1938-1990
• Kazakhstan (Soviet Republic): Chairmen of the Revolutionary Committee: 1919-1920
• Kazakhstan (Soviet Republic): Polity Style: 1920-1991
• Kazakhstan (Soviet Republic): President of the Republic: 1990-1991
• Kazakhstan (Soviet Republic): Sources
• Kazakhstan: Archontology
• Kazakhstan: Heads of State: 1991-2021
• Kazakhstan: Polity Style: 1991-2021
• Kazakhstan: Sources
• Kennedy, John
• Kenya: Archontology
• Kenya: Governors-General: 1963-1964
• Kenya: Heads of State: 1963-1964
• Kenya: Heads of State: 1964-2021
• Kenya: Polity Style: 1963-2021
• Kenya: Sources
• Kerenskij, Aleksandr Fedorovič
• Khokhlov, Ivan Sergeyevich
• KHRUSHCHEV, Nikita Sergeevič
• Kiesinger, Kurt Georg
• Kirchschläger, Rudolf
• Kiribati: Archontology
• Kiribati: Heads of State: 1979-2021
• Kiribati: Polity Style: 1979-2021
• Klerk, Frederik Willem de
• Klerk, Johannes de
• Klestil, Thomas
• Kohl, Helmut Josef Michael
• Korea (North): Archontology
• Korea (North): Chairman of the State Affairs Commission: 2016-2021
• Korea (North): Chairmen of the National Defence Commission: 1993-2016
• Korea (North): Heads of Administration: 1946-1948
• Korea (North): Heads of State: 1948-2021
• Korea (North): Polity Style: 1948-2021
• Korea (North): Sources
• Korea (South): Archontology
• Korea (South): Chairmen of the Supreme Council for National Reconstruction: 1961-1963
• Korea (South): Heads of State: 1948-1963
• Korea (South): Heads of State: 1963-2021
• Korea (South): Military Governors: 1945-1948
• Korea (South): Polity Style: 1945-2021
• Korea (South): Sources
• KOSYGIN, Aleksej Nikolajevich (USSR)
• Kosygin, Aleksey Nikolayevich
• Kubitschek de Oliveira, Juscelino
• Kuwait: Archontology
• Kuwait: Glossary
• Kuwait: Heads of State: 1752-1990
• Kuwait: Heads of State: 1991-2021
• Kuwait: Polity Style: 1752-2021
• Kuznecov, Vasilij
• Kyrgyzstan (Soviet Republic): Archontology
• Kyrgyzstan (Soviet Republic): Chairman of the Central Executive Committee: 1927-1936
• Kyrgyzstan (Soviet Republic): Chairman of the Executive Committee: 1925-1927
• Kyrgyzstan (Soviet Republic): Chairman of the Revolutionary Committee: 1924-1925
• Kyrgyzstan (Soviet Republic): Chairman of the Supreme Council: 1990
• Kyrgyzstan (Soviet Republic): Chairmen of the Presidium of the Supreme Council: 1938-1990
• Kyrgyzstan (Soviet Republic): Heads of Government: 1927-1946
• Kyrgyzstan (Soviet Republic): Heads of Government: 1946-1991
• Kyrgyzstan (Soviet Republic): Polity Style: 1924-1990
• Kyrgyzstan (Soviet Republic): President of the Republic: 1990
• Kyrgyzstan: Archontology
• Kyrgyzstan: Glossary
• Kyrgyzstan: Heads of Government: 1991-2021
• Kyrgyzstan: Heads of State: 1990-2021
• Kyrgyzstan: Notes
• Kyrgyzstan: Polity Style: 1990-2021
• Köhler, Horst
• Körner, Theodor

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