Permanent recordTuesday
Everything December 15, 2026 celebrates
6 national, international, and world observances are on the calendar for Tuesday, December 15, 2026.
| # | Observance | Category | Actions |
|---|---|---|---|
| 01 | Bill of Rights DayLead | Celebration | |
| 02 | National Cupcake Day | Food | |
| 03 | International Tea Day | Food | |
| 04 | National Wear Your Pearls Day | Celebration | |
| 05 | Cat Herders' Day | Celebration | |
| 06 | International Jewish Book Day | Books |
Born on December 15
Historic figures
- L. L. Zamenhof1859–1917Polish linguist and ophthalmologist, created Esperanto
- Henri Becquerel1852–1908French physicist and chemist, Nobel Prize laureate
- Gustave Eiffel1832–1923French architect and engineer, co-designed the Eiffel Tower
- Oscar Niemeyer1907–2012Brazilian architect
Celebrities & public figures
- Don Johnsonb. 1949American actor
- Keylor Navasb. 1986Costa Rican footballer
- Adam Brodyb. 1979American actor
- Jesse Lingardb. 1992English footballer
Everyone born on December 15 →
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 15, 2026.
For what falls on December 15 in any year, see December 15 holidays and observances.
For every date on record in 2026, see 2026 holidays and observances.