May 2, 2026
- International dayWorld Tuna Day
EVENTS & OBSERVANCES · UNITED STATES & INTERNATIONAL
1960–2030Explore the archive
May 2026 observances.
Holidays, cultural dates and regional observances — with international days, too. Explore each date and its sources.
May 3, 2026
- International dayWorld Press Freedom Day
May 5, 2026
- International dayWorld Portuguese Language Day
- State holidayPrimary Election Day
May 8, 2026
- International observanceTime of Remembrance and Reconciliation for Those Who Lost Their Lives During the Second World War
- State holidayTruman Day
May 9, 2026
- International observanceTime of Remembrance and Reconciliation for Those Who Lost Their Lives During the Second World War
- International dayWorld Migratory Bird Day
May 10, 2026
- U.S. observanceMother's Day
- International dayInternational Day of Argania
May 12, 2026
- International dayInternational Day of Plant Health
May 15, 2026
- International dayInternational Day of Families
May 16, 2026
- International dayInternational Day of Light
- International dayInternational Day of Living Together in Peace
May 17, 2026
- International dayWorld Telecommunication and Information Society Day
May 19, 2026
- International dayWorld Fair Play Day
May 20, 2026
- International dayWorld Bee Day
May 21, 2026
- International dayInternational Tea Day
- International dayWorld Day for Cultural Diversity for Dialogue and Development
May 22, 2026
- International dayInternational Day for Biological Diversity
May 23, 2026
- International dayInternational Day to End Obstetric Fistula
May 24, 2026
- International dayInternational Day of the Markhor
May 25, 2026
- U.S. federal holidayMemorial Day
- International dayWorld Football Day
- International weekWeek of Solidarity with the Peoples of Non-Self-Governing Territories
May 26, 2026
- International weekWeek of Solidarity with the Peoples of Non-Self-Governing Territories
May 27, 2026
- International weekWeek of Solidarity with the Peoples of Non-Self-Governing Territories
May 28, 2026
- International weekWeek of Solidarity with the Peoples of Non-Self-Governing Territories
May 29, 2026
- International dayInternational Day of UN Peacekeepers
- International weekWeek of Solidarity with the Peoples of Non-Self-Governing Territories
May 30, 2026
- International dayInternational Day of Potato
- International weekWeek of Solidarity with the Peoples of Non-Self-Governing Territories
May 31, 2026
- International dayWorld No-Tobacco Day
- International weekWeek of Solidarity with the Peoples of Non-Self-Governing Territories
Calendar sources: OPM, US holiday calendar, United Nations. Regional and observed dates are labelled on each entry.