Although various official and semi-official appellations were used during the early decades of independent statehood, the title of prime minister has been the formal designation of the office at least since 1843.
On dates, Greece officially adopted the Gregorian calendar on 16 February 1923 (which became 1 March).
The heads of government during the period of the Wittelsbach dynasty.
The heads of government during the first period of the Glücksburg dynasty.
The heads of government during the second period of the Glücksburg dynasty, including the rival governments during the Second World War and the Civil War, as well as the 1967–74 military regime.