| 1 December | World AIDS Day
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| 2 December | International Day for the Abolition of Slavery | |
| 3 December | International Day of Persons with Disabilities
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| 5 December | International Volunteer Day for Economic and Social Development |
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| 7 December | International Civil Aviation Day [ICAO] |
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| 9 December | International Anti-Corruption Day | |
| 10 December | Human Rights Day
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| 11 December | International Mountain Day |
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| 18 December | International Migrants Day |
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| 18 December | Arabic Language Day at the UN | |
| 19 December | United Nations Day for South-South Cooperation |
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| 20December | International Human Solidarity Day | | | |
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