278 Social Media Holidays for Your 2021 Content Calendar [+Template]

Do you celebrate International Cat Day, Pizza Day, or Talk Like a Pirate Day?

There are a plethora of observance days worldwide during which marketers can share content relevant to their industries, get involved in a movement, or simply generate more awareness. But odds are, you probably don’t acknowledge these days until you see your favorite brand posting about it.

These social media “holidays” are a fun way to connect with new and existing followers who share an affinity for a specific food, fictional character, or pet.

While we don’t suggest sharing content on social media and then adding an irrelevant holiday hashtag to it, these holidays can be a chance to promote your brand in a relevant way. Not doing so could cause you to miss valuable opportunities where your brand can join the conversations taking place among members of your target audience.

To help you plan for trending holidays, we created a list that you can bookmark, as well as a downloadable calendar so you can receive automatic reminders.

Downloadable Holiday Calendar

To help you keep track of all these unique holidays, here’s a Social Media Holiday Google Calendar.

Aside from 2021 holidays, we’ve also set dates on the calendar to repeat annually — either on the exact date they occur or the weekday they occur within the month.

Want to finish out your 2021 calendar with some upcoming holiday posts? Tap the + symbol in the lower right-hand corner of the calendar below to add it to your own Google calendar.

social media holiday calendar templateUse the Above Template to Plan Out Your Social Media Holiday Posts

National & Global Holiday Calendar: 2021

The list isn’t exhaustive (there are a lot of food-specific holidays out there), and these dates and hashtags may still be subject to change. But this is a great starting point for social media marketers who want to learn more about what’s trending and how they can plan their content in a way that will be fun and engaging on social platforms.

January 2021 Social Media Holidays

iowa state athletics national sticker day social media holiday tweet

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February 2021 Social Media Holidays

zach covey national weather persons day social media holiday tweet

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March 2021 Social Media Holidays

national park service national day of unplugging social media holiday tweet

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April 2021 Social Media Holidays

christina alexandria national siblings day social media holiday tweet

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May 2021 Social Media Holidays

violet the Newfy world password day social media holiday tweet

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June 2021 Social Media Holidays

Alex bowman National Donut Day social media  holiday tweet

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July 2021 Social Media Holidays

Stadium Give Something Away Day Social Media Holiday Tweet

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August 2021 Social Media Holidays

Wienerschnitzel National Lemonade Day Social Media Holiday Tweet

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September 2021 Social Media Holidays

Gaeilge @ Colaiste Naomh Caoimhin EDL 2021 Social Media Holiday Tweet

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October 2021 Social Media Holidays

The Beatles 4ever World vegetarian Day Social Media Holiday Tweet

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November 2021 Social Media Holidays

Nickelodeon STEM day Social Media Holiday Tweet

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December 2021 Social Media Holidays

Nobel Prize Day Globalnews.ca Social Media HolidayTweet

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Sources: National Day Calendar, Sprout Social, TrackMaven, Holiday Insights, Brownielocks, National Peace Corps Association, Sparkflow, There’s a Day for That

Editor’s Note: This post was originally published in January 2017 but is updated annually for comprehensiveness. The most recent update of this post was March 2021.

social media content calendar

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