Annual observance

Tell a Lie Day

April 4 Cultural / community observance Updated 2026-07-10

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Overview

Observed annually on April 4th, Tell a Lie Day is an informal and lighthearted observance dedicated to playful deception. It encourages individuals to tell harmless fibs, tall tales, or exaggerated stories for amusement, often serving as a humorous extension or alternative to the pranks associated with April Fools' Day. The day's spirit focuses on good-natured humor and the art of storytelling, rather than malicious untruths.

Why it matters: Tell a Lie Day, observed on April 4, celebrates the playful art of storytelling and harmless deception, allowing friends and families to engage in lighthearted fun. This day serves as a reminder of the joy that comes from creativity and humor, fostering connections through shared laughter and imaginative tales.

Origin and story

It is not a globally recognized or official public holiday, but rather an informal observance.

The day is often viewed as a 'second chance' for playful untruths for those who missed April Fools' Day on April 1st.

Quick facts

  • DateApril 4
  • TypeCultural / community observance
  • Great forFriends, Families, Classrooms, Teams

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Ways to celebrate

Most people don't need a holiday to lie — psychologist Bella DePaulo's landmark 1996 diary study had participants log every falsehood they told over a week, and found that people tell roughly one to two lies a day on average, most of them small, self-serving fibs rather than dramatic deceptions.

Tell an obviously harmless one

  • Make up a wildly exaggerated tall tale for a friend or family member to spot, keeping it playful and easy to catch rather than genuinely misleading.

Read the actual research on lying

Helpful resources: Psychology Today summarizes DePaulo's research on how often — and why — people lie in everyday life in "The Truth About Lying."

Notice the difference in intent

  • Compare a "white lie" meant to spare someone's feelings against a self-serving one, since research suggests people tell both types regularly but rarely think of them the same way.

Did you know?

DePaulo's research found that both men and women lie in roughly a fifth of their social interactions lasting ten minutes or more — meaning small deceptions are baked into ordinary daily conversation far more often than most people realize.

Fun facts

  • It is not a globally recognized or official public holiday, but rather an informal observance.
  • The day is often viewed as a 'second chance' for playful untruths for those who missed April Fools' Day on April 1st.
  • The intent of Tell a Lie Day is strictly for amusement and lighthearted fun, not to spread harmful misinformation.

Sources and attribution

External links may lead to third-party websites.


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FAQ

When is Tell a Lie Day?
It is observed on April 4 each year.
What is Tell a Lie Day?
Observed annually on April 4th, Tell a Lie Day is an informal and lighthearted observance dedicated to playful deception. It encourages individuals to tell harmless fibs, tall tales, or exaggerated stories for amusement, often serving as a humorous extension or alternative to the pranks associated with April Fools' Day. The day's spirit focuses on good-natured humor and the art of storytelling, rather than malicious untruths.
How do people celebrate Tell a Lie Day?
Tell a wildly exaggerated, obviously harmless tall tale, and read up on Bella DePaulo's research finding that most people tell one to two small lies a day without even noticing.

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