Heads of states

• High Kings of Ireland
• Kings of Ireland
• Lords of Ireland
• President of Dáil Éireann
  President of Dáil Éireann
  The President of Dáil Éireann was the leader of the revolutionary Irish Republic of 1919–1921. The office, also known as Príomh Aire , was created in the Dáil Constitution adopted by Dáil Éireann, the parliament of the Republic, at its first meeting in January 1919. This provided that the...
  
   (During the revolution)
• President of Ireland
  President of Ireland
  The President of Ireland is the head of state of Ireland. The President is usually directly elected by the people for seven years, and can be elected for a maximum of two terms. The presidency is largely a ceremonial office, but the President does exercise certain limited powers with absolute...
  
   (1938–present)

Heads of government

• Presidents of the Executive Council
  President of the Executive Council of the Irish Free State
  The President of the Executive Council of the Irish Free State was the head of government or prime minister of the Irish Free State which existed from 1922 to 1937...
  
   (1922–1937)
• Taoisigh of Ireland
  Taoiseach
  The Taoiseach is the head of government or prime minister of Ireland. The Taoiseach is appointed by the President upon the nomination of Dáil Éireann, the lower house of the Oireachtas , and must, in order to remain in office, retain the support of a majority in the Dáil.The current Taoiseach is...
  
   (prime minister) (1937–present)
• Tánaistí of Ireland
  Tánaiste
  The Tánaiste is the deputy prime minister of Ireland. The current Tánaiste is Eamon Gilmore, TD who was appointed on 9 March 2011.- Origins and etymology :...
  
   (1937–present)

Heads of former states

• Kings of Connacht
  Kings of Connacht
  The Kings of Connacht were rulers of the cóiced of Connacht, which lies west of the River Shannon, Ireland. However, the name only became applied to it in the early medieval era, being named after The Connachta.The old name for the province was Cóiced Ol nEchmacht . Ptolemy's map of c. 150 AD...
  
  
• Kings of Ulster
  Kings of Ulster
  The Kings of Ulster were of the Ulaid, and up till about AD 450, ruled as over-kings of the ancient cóiced of Ulster. Ptolemy's map shows them as the Voluntii and adjacent Darini. They were joined in the kingship by the later attested Cruithne...
  
  
• Kings of Leinster
  Kings of Leinster
  The following is a provisional list of the kings of Leinster who ruled the Irish kingdom of Leinster up to 1632 with the death of Domhnall Spainnach MacMurrough-Kavanagh, the last legitimately inaugurated head of the MacMurrough Kavanagh royal line...
  
  
• Kings of Munster
  Kings of Munster
  The name Munster is derived from the Gaelic God, Muman. The province of Munster was once divided into six regions: Tuadh Mhuman , Des Mhuman , Aur/Ur Mumhan , Iar mumhan or Iarmuman , Ernaibh Muman , and Deisi Muman...
  
  
• Kings of Breifne
• Kings of East Breifne

British governors

• Lord Deputies and Lord Lieutenants of Ireland
• Chief Secretary for Ireland
  Chief Secretary for Ireland
  The Chief Secretary for Ireland was a key political office in the British administration in Ireland. Nominally subordinate to the Lord Lieutenant, from the late 18th century until the end of British rule he was effectively the government minister with responsibility for governing Ireland; usually...
  
  
• Lord Chancellors of Ireland
  Lord Chancellor of Ireland
  The office of Lord Chancellor of Ireland was the highest judicial office in Ireland until the establishment of the Irish Free State in 1922. From 1721 to 1801 it was also the highest political office of the Irish Parliament.-13th century:...
  
  
• Governor-General of the Irish Free State
  Governor-General of the Irish Free State
  The Governor-General was the representative of the King in the 1922–1937 Irish Free State. Until 1927 he was also the agent of the British government in the Irish state. By convention the office of Governor-General was largely ceremonial...
  
   (1922–1936)

Courts office-holders

• Attorneys-General for Ireland
  Attorney-General for Ireland
  The Attorney-General for Ireland was an Irish and then United Kingdom government office. The holder was senior to the Solicitor-General for Ireland, and advised the Crown on Irish legal matters...
  
  
• Attorneys General
  Attorney General of Ireland
  The Attorney General is a constitutional officer who is the official adviser to the Government of Ireland in matters of law. He is in effect the chief law officer in Ireland. The Attorney General is not a member of the Government but does participate in cabinet meetings when invited and attends...
  
  (1922–present)