UN.

Here’s a comprehensive list of key departments, programs, and specialized agencies within the United Nations. For more detailed information on their missions, functions, and activities, you can explore their official websites through the links provided.

UN Secretariat Departments:

1. Department of Political and Peacebuilding Affairs (DPPA)
   • https://dppa.un.org
2. Department of Peace Operations (DPO)
   • https://peacekeeping.un.org/en/department-of-peace-operations
3. Office for the Coordination of Humanitarian Affairs (OCHA)
   • https://www.unocha.org
4. Department of Economic and Social Affairs (DESA)
   • https://www.un.org/development/desa/en/
5. Office of the High Commissioner for Human Rights (OHCHR)
   • https://www.ohchr.org
6. Office of Legal Affairs (OLA)
   • https://legal.un.org/
7. Department of Global Communications (DGC)
   • https://www.un.org/en/our-work/department-global-communications
8. Department of Operational Support (DOS)
   • https://operationalsupport.un.org
9. Department of Safety and Security (DSS)
   • https://www.un.org/en/our-work/department-safety-and-security

Specialized Agencies:

1. Food and Agriculture Organization (FAO)
   • https://www.fao.org
2. International Civil Aviation Organization (ICAO)
   • https://www.icao.int
3. International Fund for Agricultural Development (IFAD)
   • https://www.ifad.org
4. International Labour Organization (ILO)
   • https://www.ilo.org
5. International Maritime Organization (IMO)
   • https://www.imo.org
6. International Monetary Fund (IMF)
   • https://www.imf.org
7. United Nations Educational, Scientific and Cultural Organization (UNESCO)
   • https://en.unesco.org
8. United Nations Industrial Development Organization (UNIDO)
   • https://www.unido.org
9. Universal Postal Union (UPU)
   • https://www.upu.int
10. World Bank Group (WB)
    • https://www.worldbank.org
11. World Health Organization (WHO)
    • https://www.who.int
12. World Intellectual Property Organization (WIPO)
    • https://www.wipo.int
13. World Meteorological Organization (WMO)
    • https://public.wmo.int
14. World Tourism Organization (UNWTO)
    • https://www.unwto.org

UN Programs and Funds:

1. United Nations Development Programme (UNDP)
   • https://www.undp.org
2. United Nations Children’s Fund (UNICEF)
   • https://www.unicef.org
3. United Nations Population Fund (UNFPA)
   • https://www.unfpa.org
4. World Food Programme (WFP)
   • https://www.wfp.org
5. United Nations High Commissioner for Refugees (UNHCR)
   • https://www.unhcr.org
6. United Nations Environment Programme (UNEP)
   • https://www.unep.org
7. United Nations Office on Drugs and Crime (UNODC)
   • https://www.unodc.org

UN Related Organizations:

1. International Atomic Energy Agency (IAEA)
   • https://www.iaea.org
2. World Trade Organization (WTO)
   • https://www.wto.org
3. International Telecommunication Union (ITU)
   • https://www.itu.int

This list covers key organizations that work across peace, development, humanitarian aid, and global governance under the UN umbrella.