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Structure and Organization

The Charter established six principal organs of the United Nations: the General Assembly, the Security Council, the Economic and Social Council, the Trusteeship Council, the International Court of Justice, and the Secretariat. The United Nations family, however, is much larger, encompassing 15 agencies and several programmes and bodies.

Organizational chart | UN System locator

General Assembly

The following Bodies report directly to the General Assembly.

Main Committees

Subsidiary Bodies

Advisory Subsidiary Body

Programmes and Funds

Research and Training Institutes

Other UN Entities

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Security Council

The following bodies report directly to the Security Council.

Subsidiary Bodies

Advisory Subsidiary Body

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Economic and Social Council

The following bodies report directly to Economic and Social Council.

Functional Commissions

Regional Commissions

Standing Committees

Ad hoc bodies

Expert Bodies composed of governmental experts

Expert Bodies composed of members serving in their personal capacity

Other related Bodies

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Trusteeship Council

International Court of Justice


Specialized Agencies, Related Organizations, Funds, and other UN Entities

Specialized Agencies

Related Organizations

Secretariats of Conventions

UN Trust Funds

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(1) The United Nations Peacebuilding Commission has a direct reporting relationship with the Security Council and the General Assembly, and non-subsidiary relationship with the Economic and Social Council and the Office of the Secretary-General.

(2) The IAEA reports to the Security Council and the General Assembly (GA).

(3) The CTBTO Preparatory Commission and OPCW report to the GA.

(4) UNDEF’s Advisory Board recommends funding proposals for approval by the Secretary-General.

(5) UNFIP is an autonomous trust fund operating under the leadership of the United Nations Deputy Secretary-General.