Holidays on December 6
- Constitution Day in Spain
- Good Neighbourliness Day in Turkmenistan
- Finnish Independence Day
- Day of the Drug Control Units of the Russian Interior Ministry
- Prosecutor's Office Day in Kazakhstan
- Communications and IT Workers' Day in Azerbaijan
- Network Marketer's Day in Russia
- Lawyer's Day in Belarus
- Microwave Oven Day
- Put On Your Own Shoes Day
- Gazpacho Day
- Mitten Tree Day