November 18 Holidays, events and History 2021.
| Date | Day | Holiday Name | Holiday Type | Country |
| 18 Nov | Thursday | Independence Day | National holiday | Morocco |
| 18 Nov | Thursday | Il Full Moon Poya Day | Public Holiday | Sri Lanka |
| 18 Nov | Thursday | Vertières Day | National/legal holiday | Haiti |
| 18 Nov | Thursday | Remembrance Day | National holiday | croatia |
| 18 Nov | Thursday | Republic of Latvia Proclamation Day | National holiday | Latvia |
| 18 Nov | Thursday | National Day | Public Holiday | Oman |