October 25 Holidays, events and History 2021.
| Date | Day | Holiday Name | Holiday Type | Country |
| 25 Oct | Monday | Labour Day | National holiday | New Zealand |
| 25 Oct | Monday | United Nations Day observed | Public Holiday | Micronesia |
| 25 Oct | Monday | Chulalongkorn Day observed | National holiday | Thailand |
| 25 Oct | Monday | Thanksgiving | Public Holiday | Grenada |
| 25 Oct | Monday | October Bank Holiday | National holiday | Ireland |