Prime minister of Greece

Prime Minister of the Hellenic Republic Πρωθυπουργός της Ελληνικής Δημοκρατίας
Coat of arms of the Hellenic Republic
Incumbent Alexis Tsipras since 21 September 2015
Style	Mr. President
Seat	Maximos Mansion
Appointer	President of Greece
Inaugural holder	Alexandros Mavrokordatos (As the President of the Executive)
Formation	13 January 1822
Website	Prime Minister's Office

The Prime Minister of the Hellenic Republic (Greek: Πρωθυπουργός της Ελληνικής Δημοκρατίας, Pro̱thypourgós ti̱s Elli̱nikí̱s Di̱mokratías), colloquially referred to as the Prime Minister of Greece (Greek: Πρωθυπουργός της Ελλάδας, Pro̱thypourgós ti̱s Elládas), is the head of government of the Hellenic Republic and the leader of the Greek cabinet. The incumbent prime minister is Alexis Tsipras, who took office on 21 September 2015.

The prime minister's official seat (but not residence) is the Maximos Mansion in the centre of Athens. The office is described in the Constitution either as Prime Minister or President of the Government (Πρόεδρος της Κυβερνήσεως). This is the reason why the prime minister is also addressed as "Mister President".

The prime minister is officially appointed by the president of Greece.

According to the Article 37 of the Greek Constitution, the president shall appoint the leader of the political party with the absolute majority of seats in the parliament as prime minister. If no party has the absolute majority, the president shall give the leader of the party with a relative majority (plurality) an exploratory mandate in order to ascertain the possibility of forming a government enjoying the confidence of parliament.

If this possibility cannot be ascertained, the President shall give the exploratory mandate to the leader of the second largest party in Parliament, and if this proves to be unsuccessful, to the leader of the third largest party in parliament. Each exploratory mandate shall be in force for three days.