Permanent recordFriday
Everything December 11, 2026 celebrates
7 national, international, and world observances are on the calendar for Friday, December 11, 2026.
| # | Observance | Category | Actions |
|---|---|---|---|
| 01 | International Mountain DayLead | Nature | |
| 02 | National App Day | Tech | |
| 03 | National Have a Bagel Day | Food | |
| 04 | National Salesperson's Day | Celebration | |
| 05 | National Stretching Day | Health | |
| 06 | Official Lost and Found Day | Celebration | |
| 07 | Holiday Food Drive for Needy Animals Day | Community |
Born on December 11
Historic figures
- Naguib Mahfouz1911–2006Egyptian author, playwright, and screenwriter, Nobel Prize laureate
- Aleksandr Solzhenitsyn1918–2008Russian novelist, historian, and short story writer
- Hector Berlioz1803–1869French composer, conductor, and critic
- Robert Koch1843–1910German microbiologist and physician, Nobel Prize laureate
Celebrities & public figures
- John Kerryb. 1943American lieutenant
- Hailee Steinfeldb. 1996American actress
- Viswanathan Anandb. 1969Indian chess player
- Rita Morenob. 1931Puerto Rican actress
Everyone born on December 11 →
Birth dates from Wikidata; names link to Wikipedia.
Today Celebrates tracks daily national, international and world observances all year. This page is a permanent record of December 11, 2026.
For what falls on December 11 in any year, see December 11 holidays and observances.
For every date on record in 2026, see 2026 holidays and observances.