- 联合国儿童基金会 liánhéguó'értóngjījīnhuì UNICEFUnited Nations Children's Fund
- 联合国大会 liánhéguódàhuì UN General AssemblyUnited Nations General Assembly; the main policymaking organ of the [[联合国|聯合國|lian2 he2 guo2]] where all member states have equal representation
- 联合国安全理事会 liánhéguó'ānquánlǐshìhuì UN Security CouncilThe United Nations body responsible for maintaining international peace and security; abbreviated as [[安全理事会|安全理事會|an1 quan2 li3 shi4 hui4]] or [[安理会|安理會|an1 li3 hui4]]
- 联合国宪章 liánhéguóxiànzhāng United Nations Charterthe founding document of the United Nations, signed in 1945, which outlines the rights and duties of member states and establishes the organization's organs and procedures
- 联合国开发计划署 liánhéguókāifājìhuàshǔ United Nations Development Program
- 联合国教科文组织 liánhéguójiàokēwénzǔzhī UNESCOUnited Nations Educational, Scientific and Cultural Organization
- 联合国教育科学文化组织 liánhéguójiàoyùkēxuéwénhuàzǔzhī UNESCOUnited Nations Educational, Scientific and Cultural Organization
- 联合国日 liánhéguórì United Nations DayUnited Nations Day; an international day celebrated annually on October 24 to commemorate the official creation of the United Nations in 1945.
- 联合国气候变化框架公约 liánhéguóqìhòubiànhuàkuàngjiàgōngyuē United Nations Framework Convention on Climate Change
- 联合国海洋法公约 liánhéguóhǎiyángfǎgōngyuē United Nations Convention on the Law of the Sea
- 联合国环境规划署 liánhéguóhuánjìngguīhuàshǔ United Nations Environment ProgrammeUnited Nations Environment Programme (UNEP)
- 联合国秘书处 liánhéguómìshūchù UN Secretariatthe Secretariat of the United Nations, one of the main bodies of the [[联合国|聯合國|lian2 he2 guo2]]
- 联合国粮农组织 liánhéguóliángnóngzǔzhī Food and Agriculture OrganizationFood and Agriculture Organization of the United Nations (FAO); an international agency focused on defeating hunger and improving nutrition and food security
- 加入联合国 jiārùliánhéguó to join the UNto join the United Nations
- 联合国难民事务高级专员办事处 liánhéguónànmínshìwùgāojízhuānyuánbànshìchù UNHCROffice of the United Nations High Commissioner for Refugees; the UN Refugee Agency
- 加入联合国安全理事会常任理事国 jiārùliánhéguó'ānquánlǐshìhuìchángrènlǐshìguó joining the UN Security Council as a permanent memberto join the United Nations Security Council as a permanent member