Underdog Day

  1. Home
  2. Countries
  3. USA
Category: General

General
Underdog Day in USA in 2025
Image from Deposit Photos. Royalty Free

About Underdog Day

How long until Underdog Day?
Underdog Day .
Dates of Underdog Day
2026 USA Friday, December 18thUnderdog Day
2025 USA Friday, December 19thUnderdog Day
2024 USA Friday, December 13thUnderdog Day
2023 USA Friday, December 15thUnderdog Day
2022 USA Friday, December 16thUnderdog Day
Summary
Find out the dates, history and traditions of Underdog Day

A day to salute, all of the underdogs, sidekicks and unsung heroes—the Number Two people who contribute so much to the Number One people we read about. (Sherlock Holmes's Dr. Watson, Batman's Robin and Robinson Crusoe's Friday are examples.)

Observed annually on the third Friday in December since its founding in 1976 by the late Peter Moeller.

Similar Observances

Read more about Daylight Savings Begins
9Mar

Daylight Savings Begins 🕑

Get ready to set your clocks forward by one hour as daylight savings time starts.

Read More
Read more about National Worship of Tools Day
11Mar

National Worship of Tools Day

A day to spruce up spanners, wipe down your wrenches and clean your claw hammers!

Read More
Read more about National 311 Day
11Mar

National 311 Day

Find out the dates, history and traditions of National 311 Day.

Read More
Read more about National Promposal Day
11Mar

National Promposal Day

Find out the dates, history and traditions of National Promposal Day.

Read More
Explore more General holidays

Other Observances on December 19th 2025

Read more about National Hard Candy Day

National Hard Candy Day 🍬

Find out the dates, history and traditions of National Hard Candy Day

Read More
Read more about National Oatmeal Muffin Day

National Oatmeal Muffin Day

Find out the dates, history and traditions of National Oatmeal Muffin Day

Read More
All events on December 19th 2025

Translate this page