Wikipedia Day
Celebrating the anniversary of Wikipedia's launch in 2001, when the world's largest free online encyclopedia went live.
1 min read · Fact-checked · Updated for 2027
About Wikipedia Day
Wikipedia Day marks the anniversary of Wikipedia's launch on January 15, 2001, by Jimmy Wales and Larry Sanger. Starting as a supplement to the expert-written Nupedia, Wikipedia grew into the world's largest reference work, with over 60 million articles in more than 330 languages. It is a cornerstone of the open internet, maintained by thousands of volunteer editors. Wikipedia Day is celebrated by the Wikimedia community with edit-a-thons, meetups, and events promoting free knowledge.
Read more on WikipediaWhen is Wikipedia Day?
Wikipedia Day is celebrated every year on January 15. Upcoming dates:
| Year | Date | Day of week | |
|---|---|---|---|
| Wikipedia Day 2027 | January 15, 2027 | Friday | View date → |
| Wikipedia Day 2028 | January 15, 2028 | Saturday🎉 weekend | View date → |
| Wikipedia Day 2029 | January 15, 2029 | Monday | View date → |
| Wikipedia Day 2030 | January 15, 2030 | Tuesday | View date → |
| Wikipedia Day 2031 | January 15, 2031 | Wednesday | View date → |
How to Celebrate Wikipedia Day
- 🎯Try a hands-on activity: code something small, automate a task, or teach someone a digital skill.
- 💡Read about the history behind Wikipedia Day — it is usually stranger than you expect.
- 📣Share your project or story with #WikipediaDay.
Official hashtag: #WikipediaDay
Frequently Asked Questions
When is Wikipedia Day 2027?
Wikipedia Day 2027 is on Friday, January 15, 2027.
How many days until Wikipedia Day?
There are 186 days until Wikipedia Day (January 15, 2027).
What category is Wikipedia Day?
Wikipedia Day is categorized as a Tech event.
Is Wikipedia Day a public holiday?
Wikipedia Day is an observance day, not typically a public holiday. Check your country's official calendar for local public holidays.
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