Since achieving independence from the Ottoman Empire in 1822, Greece has undergone multiple periods of existing both as a republic and as a monarchy. The First Hellenic Republic existed from 1822 to 1832 (as the Provisional Administration of Greece from 1822 to 1827, then as the Hellenic State from 1827 to 1832), with the President of the Executive of the Provisional Administration of Greece serving as head of state from 1822 to 1827, followed by the Governor of Greece from 1827 to 1832. This was followed by the Kingdom of Greece from 1832 to 1924, governed by the King of Greece until 1862, and then the King of the Hellenes from 1863. The Second Hellenic Republic existed from 1924 to 1935, with the President of the Hellenic Republic serving as head of state. The Kingdom of Greece was subsequently restored from 1935 to 1973, with the King of the Hellenes serving as the head of state. A military junta ruled the country until 1974, followed by democratic rule since then, with the President of the Hellenic Republic serving as the country’s highest-ranking official.
THE PRESIDENTS OF THE EXECUTIVE OF THE PRIVISIONAL ADMINISTRATION OF GREECE
13 January 1822 – 10 May 1823
10 May – 31 December 1823
31 December 1823 – 26 April 1826
26 April 1826 – 14 April 1827
THE GOVERNORS OF THE HELLENIC STATE
18 January 1828 – 27 September 1831
9 October 1831 – 23 March 1832
Russian Party
THE KINGS AND REGENTS OF GREECE/THE HELLENES
Regents are listed in italics.
6 February 1832 – 23 October 1862
30 March 1863 – 18 March 1913
House of Schleswig-Holstein-Sonderburg-Glücksburg
Third cousin once removed of Otto
18 March 1913 – 11 June 1917
House of Schleswig-Holstein-Sonderburg-Glücksburg
Son of George I
11 June 1917 – 25 October 1920
House of Schleswig-Holstein-Sonderburg-Glücksburg
Son of Constantine I
28 October – 17 November 1920
17 November – 19 December 1920
House of Holstein-Gottorp-Romanov
Wife of Constantine I, mother of Alexander
19 December 1920 – 27 September 1922
House of Schleswig-Holstein-Sonderburg-Glücksburg
Son of George I, father of Alexander, husband of Olga
27 September 1922 – 25 March 1924
House of Schleswig-Holstein-Sonderburg-Glücksburg
Son of Constantine I and Olga
THE PRESIDENTS OF THE HELLENIC REPUBLIC
Acting presidents are listed in italics.
25 March 1924 – 6 April 1926
Independent
Elected in 1924
6 – 18 April 1926
19 July – 22 August 1926
Independent
Elected in 1926
22 – 24 August 1926
24 August 1926 – 10 December 1929
Independent
10 – 14 December 1929
14 December 1929 – 10 October 1935
Independent
THE KINGS AND REGENTS OF THE HELLENES
Regents are listed in italics.
10 October – 25 November 1935
25 November 1935 – 1 April 1947
House of Schleswig-Holstein-Sonderburg-Glücksburg
Son of Constantine I and Olga
31 December 1944 – 27 September 1946
1 April 1947 – 6 March 1964
House of Schleswig-Holstein-Sonderburg-Glücksburg
Son of Constantine I and Olga, brother of Alexander and George II
6 March 1964 – 1 June 1973
House of Schleswig-Holstein-Sonderburg-Glücksburg
Son of Paul
13 December 1967 – 21 March 1972
21 March 1972 – 31 May 1973
THE PRESIDENTS OF THE HELLENIC REPUBLIC (MILITARY JUNTA)
1 June – 25 November 1973
25 November 1973 – 24 July 1974
THE PRESIDENTS OF THE HELLENIC REPUBLIC (DEMOCRACY)
Acting presidents are listed in italics.
24 July – 17 December 1974
18 December 1974 – 19 July 1975
Elected in 1974
19 July 1975 – 10 May 1980
New Democracy
Elected in 1975
10 May 1980 – 10 March 1985
New Democracy
Elected in 1980
10-30 March 1985
Panhellenic Socialist Movement
30 March 1985 – 5 May 1990
Independent
Elected in 1985
5 May 1990 – 10 March 1995
New Democracy
Elected in 1990
10 March 1995 – 12 March 2005
Independent
12 March 2005 – 13 March 2015
Panhellenic Socialist Movement
13 March 2015 – 13 March 2020
New Democracy
Elected in 2015
13 March 2020 – present
Independent
Elected in 2020