April 11 Holidays & Observances
1 holiday observed on April 11 in the 2026–2030 window.
View all April holidays
See every observance across April in one monthly calendar.
April calendar →April 11 — quick answers
- How many holidays fall on April 11?
- In the 2026–2030 window, 1 holiday and observance falls on April 11: National Pet Day.
- What is celebrated on April 11?
- April 11 is home to National Pet Day. Each one has its own page with history and a live countdown.
- Are any April 11 holidays public holidays?
- None of the observances on April 11 are US federal holidays; they are celebrated informally by people, brands and communities.