List of United Nations observances
This is a list of the United Nations observances. The list includes all types of observances.
The majority of observances have been established by resolutions of the United Nations General Assembly, although some have been designated by UN specialized agencies. These observances include many kinds of topic, all related to the UN main works, including peace, tobacco, discrimination, diseases, illegal drugs.
Introduction
Reason for establishing observances
As the UN explained,International Days and Weeks
Six Language Days
These six languages are the official languages of the UN.| Date | Language | Rationale | |
| French | day when OIF established | ||
| Chinese | Chinese jieqi Guyu | ||
| English | birth of William Shakespeare | ||
| Spanish | death of Miguel de Cervantes | ||
| Russian | birth of Pushkin | ||
| Arabic | the day when Arabic became an official language in UN |