Underdog Day

Underdog Day is observed next on Friday, December 18th, 2026 (359 days from today).

• How many days until Underdog Day?

Underdog

Observed

Underdog Day has been observed the third Friday in December.

Dates

Friday, December 20th, 2024

Friday, December 19th, 2025

Friday, December 18th, 2026

Friday, December 17th, 2027

Friday, December 15th, 2028

Hashtag

#UnderdogDay

Source

getschooled.com

← National Wear a Plunger on Your Head Day•••Holly Day →

Also on Friday, December 18th, 2026

National Wear a Plunger on Your Head Day

National Wear a Plunger on Your Head Day

National Ugly Christmas Sweater Day

National Ugly Christmas Sweater Day

National Twin Day

National Twin Day

→ See all events on Friday, December 18th, 2026

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