The Cabinet Office is a department of the Government of Sri Lanka responsible for supporting the Cabinet of Sri Lanka

Cabinet of Sri Lanka

The Cabinet of Sri Lanka is the council of cabinet ministers , responsible to parliament. Cabinet ministers are appointed by the President under the advice of the Prime Minister and serve at his pleasure. Officially the prime minister is the head of the cabinet, but the cabinet is chaired by the...

. The department was formed in 1947 when the first cabinet of the Dominion of Ceylon was formed, headed by The Rt Hon D.S. Senanayake, first Prime Minister of Ceylon. Currently it is based at the Republic Building, Colombo

Republic Building, Colombo

The Republic Building, is the building that houses the Ministry of Foreign Affairs in southern wing and the Cabinet Office in its northern wing. Situated in the Colombo fort in close proximity to the President's House, Colombo...

 were the cabinet meets weekly. The head of the Cabinet Office is the Cabinet Secretary

Cabinet Secretary

A Cabinet Secretary is almost always a senior official who provides services and advice to a Cabinet of Ministers. In many countries, the position can have considerably wider functions and powers, including general responsibility for the entire civil service...

.

The first Cabinet Secretary was T. D. Perera who was Deputy Secretary to the Treasury, and held the post concurrently. Administration handled by the Assistant Secretary Bernard Peiris

Bernard Peiris

Bernard Percival Peiris, OBE, JP was a Sri Lankan lawyer. He was the former Cabinet Secretary and the Legal Draftsmen who drafted the Ceylon Order in Council, the first constitution of independent Ceylon.-Family:...

, who functioned as de facto Secretary until appointment as Cabinet Secretary. Thus becoming the third person to hold that office.

List of Cabinet Secretaries

• Theodore Duncan Perera (1947-??) (concurrent Deputy Secretary to the Treasury)
• A G Ranasinghe (19??-1954) (concurrent Secretary to the Treasury)
• Bernard Peiris
  Bernard Peiris
  Bernard Percival Peiris, OBE, JP was a Sri Lankan lawyer. He was the former Cabinet Secretary and the Legal Draftsmen who drafted the Ceylon Order in Council, the first constitution of independent Ceylon.-Family:...
  
   (1954–1963)
• G.V.P. Samarasinghe
  G.V.P. Samarasinghe
  G.V.P. Samarasinghe, CCS was a Sri Lankan civil servant. He was the former Permanent Secretary of Defence and Foreign Affairs and Cabinet Secretary. Educated at the prestigious Royal College Colombo, he is a graduate from the University College, Colombo....
  
  
• Dharmasiri Wijesinghe
• Sumith Abeysinghe