Greece: Heads of Government: 1862-1863

Proedros tēs Prosōrinēs Kyvernēseōs (Πρόεδρος της Προσωρινής Κυβερνήσεως) \| President of the Provisional Government [1]
10/22 Oct 1862 - 9/21 Feb 1863	Dēmētrios Geōrgiou Voulgarēs (Δημήτριος Γεωργίου Βούλγαρης)
Proedreuōn Antiproedros tēs Ethnikēs Syneleuseōs (Προεδρεύων Άντιπρόεδρος της Εθνικής Συνελεύσεως) \| Presiding Vice-President of the National Assembly
9/21 Feb 1863 - 11/23 Feb 1863	Aristidis Moraïtinis (Αριστείδης Μοραϊτίνης)
Proedros tēs Prosōrinēs Kyvernēseōs (Πρόεδρος της Προσωρινής Κυβερνήσεως) \| President of the Provisional Government
11/23 Feb 1863 - 27 Mar/8 Apr 1863	Zēnovios Iōannou Valvēs (Ζηνόβιος Ιωάννου Βάλβης) [2]
27 Mar/8 Apr 1863 - 29 Apr/11 May 1863	Diomēdēs Athanasiou Kyriakos (Διομήδης Αθανάσιου Κυριάκος)
29 Apr/11 May 1863 - 19 Jun/1 Jul 1863	Benizelos Athanasiou Rouphos (Μπενιζέλος Αθανάσιου Ρούφος)
Proedros tēs Ethnikēs Syneleuseōs (Πρόεδρος της Εθνικής Συνελεύσεως) \| President of the National Assembly
19 Jun/1 Jul 1863 - 21 Jun/3 Jul 1863	Diomēdēs Athanasiou Kyriakos (Διομήδης Αθανάσιου Κυριάκος)
Proedros tēs Prosōrinēs Kyvernēseōs (Πρόεδρος της Προσωρινής Κυβερνήσεως) \| President of the Provisional Government
21 Jun/3 Jul 1863 - 18/30 Oct 1863	Benizelos Athanasiou Rouphos (Μπενιζέλος Αθανάσιου Ρούφος)

The official name of the Provisional Government was approved by the resolutions of the National Assembly on 4/16 Feb 1863 and 11/23 Feb 1863: Prosōrinē Kyvernesis tēs Hellados (Προσωρινή Κυβέρνεσις της Ελλάδος) | Provisional Government of Greece.
Original name: Zapheirios Iōannou Valvēs (Ζαφείριος Ιωάννου Βάλβης).