United Nations Secretariat
The executive organ of the United Nations that provides administrative support, policy analysis and coordination. Headed by the Secretary‑General, it supplies staff and services to all UN bodies worldwide.
The United Nations Secretariat is the UN's administrative and executive arm. It carries out day‑to‑day work mandated by the organization’s principal organs, provides expert analysis and implements programmes and policies. The Secretariat is led by the Secretary‑General, who is appointed by the General Assembly following the recommendation of the Security Council.
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Functioning as a professional, international civil service, the Secretariat is staffed by employees drawn from many countries and backgrounds. Its responsibilities include preparing studies and reports for member states, servicing meetings and conferences, managing peacekeeping and humanitarian operations, and coordinating the UN’s official communications and field activities. The Secretariat is intended to be neutral and impartial, serving the interests of the organization as a whole rather than those of individual member states.
Structure and key components
The Secretariat is organized into departments, offices and regional commissions that specialize in different policy areas and administrative functions. Major components include departments for political affairs and peacebuilding, peace operations, economic and social affairs, management and budget, legal affairs, and humanitarian coordination. Headquarters are located in New York with major duty stations and offices in Geneva, Vienna and Nairobi.
- Policy and analysis: produces reports, background studies and legal opinions for UN bodies.
- Operational support: manages logistics, human resources, finance and procurement for programmes and missions.
- Field coordination: supports UN country teams, peacekeeping missions and special political missions.
- Public information: communicates UN activities to governments, NGOs and the public.
History and development
Created at the founding of the organization in 1945, the Secretariat has evolved as international demands and global institutions expanded. Its mandate and structures have been periodically adjusted to reflect changing priorities: decolonization, the Cold War, post‑Cold War peacebuilding, the growth of humanitarian assistance, sustainable development goals and the contemporary focus on conflict prevention and climate resilience. Over time, reform efforts have sought to make the Secretariat more efficient, accountable and responsive to member states and to emerging global challenges.
Role in peace, security and global action
While the Security Council makes binding decisions on peace and security, the Secretariat enables implementation by organizing peacekeeping missions, supplying civilian and uniformed personnel, and coordinating logistics and training. It also administers programmes that address poverty, health, human rights and development, serving as a platform for international cooperation and for translating multilateral decisions into concrete action on the ground.
Distinctive features and notable facts
The Secretary‑General acts as the chief administrative officer and is often a visible diplomatic figure and spokesperson for the UN. Secretariat staff are expected to observe international civil service principles of neutrality and non‑discrimination. Funding for the Secretariat and many of its activities comes from assessed and voluntary contributions from member states, and the organization frequently undergoes reviews aimed at improving transparency, management and effectiveness.
For further institutional details or official documents consult specialized UN sources and the Secretariat’s own publications, which provide comprehensive information on current structure, mandates and ongoing reform initiatives.
Offices and departments
In addition to the New York headquarters, the United Nations maintains the following field offices of the UN Secretariat:
- United Nations Office at Geneva (UNOG)
- United Nations Office at Vienna (UNOV)
- United Nations Office at Nairobi (UNON)
The activities of the UN Secretariat are divided among the following departments:
| Executive Office of the Secretary-General | EOSG | Executive Office of the Secretary-General |
| Office of Internal Oversight Services | OIOS | Office of Internal Oversight Services |
| Legal affairs | OLA | Office of Legal Affairs |
| Political Affairs and Peacebuilding Department | DPPA | Department of Political and Peacebuilding Affairs |
| Office for Disarmament Affairs | ODA | Office for Disarmament Affairs |
| Department of Peacekeeping Operations | DPO | Department of Peace Operations |
| Operational Support Department | DOS | Department of Operational Support |
| UN Office for the Coordination of Humanitarian Affairs | OCHA | Office for the Coordination of Humanitarian Affairs |
| Counterterrorism Bureau | OCT | Office of Counter-Terrorism |
| Department of Economic and Social Affairs | DESA | Department of Economic and Social Affairs |
| General Assembly and Conference Management Department | DGACM | Department for General Assembly and Conference Management |
| Press and Information Department | DPI | Department of Public Information |
| Management Strategy, Policy and Compliance Department | DMSPC | Department of Management Strategy, Policy and Compliance |
| Office for Information and Communication Technology | OICT | Office of Information and Communications Technology |
| Office of the High Representative for Least Developed Countries, Landlocked Developing Countries and Small Island Developing States | OHRLLS | Office of the High Representative for Least Developed Countries, Landlocked Developing Countries and Small Island Developing States |
| Office of the United Nations Security Coordinator | UNSECOORD | Office of the United Nations Security Coordinator |
| UN Office for Disaster Risk Reduction | UNDRR | United Nations Office for Disaster Risk Reduction |
| UN Office on Drugs and Crime | UNODC | UN Office on Drugs and Crime |
The departments in the UN Secretariat are headed by an Under-Secretary-General of the United Nations (USG).
Secretaries-General of the UN (chronological)
(→Compare the list of Secretaries General and Deputy Secretaries General)
- 1946-1952: Trygve Lie (Norway)
- 1953-1961: Dag Hammarskjöld (Sweden)
- 1961-1971: Sithu U Thant (Burma)
- 1972-1981: Kurt Waldheim (Austria)
- 1982-1991: Javier Pérez de Cuéllar (Peru)
- 1992-1996: Boutros Boutros-Ghali (Egypt)
- 1997-2006: Kofi Annan (Ghana)
- 2007-2016: Ban Ki-moon (Republic of Korea)
- since 1 January 2017: António Guterres (Portugal)
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Author
AlegsaOnline.com United Nations Secretariat Leandro Alegsa
URL: https://en.alegsaonline.com/art/102982
