| Children's Day | South Korea |
| Cinco de Mayo | |
| Constitution Day | Kyrgyzstan |
| Coronation Day | Thailand |
| Festival of Se�or de Muruhuay | Peru |
| Indian Heritage Day | Guyana |
| Kodomo no Hi / Children's Day (End of Golden Week) | Japan |
| Kvetnove povstani ceskeho lidu - 1945 (Prague Uprising - 1945) | Czech Republic |
| Labor Day | |
| Labour Day/May Day | Australia |
| May Day | |
| May Day Bank Holiday | United Kingdom of Great Britain and Northern Ireland |
| May Holiday | Ireland |
| Senior Citizen's Day | Palau |
| Week of the Classroom Teacher | United States of America |
| Liberation Day - Nationale Bevrijdingsdag | Netherlands |
