August 21 Holidays & Observances
0 holidays observed on August 21 in the 2026–2030 window.
No scheduled holidays fall on August 21. Browse the calendar instead.
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See every observance across August in one monthly calendar.
August calendar →August 21 — quick answers
- How many holidays fall on August 21?
- In the 2026–2030 window, 0 holidays and observance fall on August 21.
- What is celebrated on August 21?
- No widely observed holidays are scheduled for August 21 in our database, but new national and world days are added regularly.
- Are any August 21 holidays public holidays?
- None of the observances on August 21 are US federal holidays; they are celebrated informally by people, brands and communities.