This is a list of the Kings of Greece, formally known by the title of King of the Hellenes

House of Wittelsbach

• Otto (1832-1862)

House of Schleswig-Holstein-Sonderburg-Glücksburg

• George I (1863 - 1913)
• Constantine I (1913 - 1917) first time
• Alexander (1917 - 1920)
• Constantine I (1920 - 1922) second time
• George II (1922 - 1924) first time

First Hellenic Republic, 1924-1935

• See List of Presidents of Greece

House of Schleswig-Holstein-Sonderburg-Glücksburg (restored)

• George II (1935 - 1947) second time
• Paul (1947 - 1964)
• Constantine II (1964 - 1973) [1]

Dictatorship, 1967-1974

• See List of Presidents of Greece [1],[2]

Second Hellenic Republic, 1974-present

• See List of Presidents of Greece [2]

see also: list of Prime Ministers of Greece, lists of incumbents

Notes

[1] Constantine went into exile in 1967. Regents assumed his role. The monarchy was abolished by referendum in 1973.
[2] The 1973 republic was declared by the Regime of the Colonels. In 1974, democracy was restored. A new referendum on the monarchy took place. The republican side won by 2:1.