- Bunker Hill Day (Suffolk County, Massachusetts)
- National Day, celebrates the independence of Iceland from Kingdom of Denmark in 1944.
- Soviet Occupation Day (Latvia)
- West Germany, from 1954 to 1990, the Day of German Unity
- World Day to Combat Desertification and Drought (International)
- Zemla Intifada Day (Sahrawi Arab Democratic Republic)
Holidays and observances