From food to health to animals and everything in between, there’s no shortage of social media holidays or observance days to help you build connections with your customers.

We’re not talking about the traditional holidays we all know, like New Year’s or Valentine’s Day. But the quirky, lesser known holidays that like Random Acts of Kindness Day, Pizza Day or Take Your Dog to Work Day. 

Businesses can share content relevant to their industries, get involved in a movement, or simply generate more awareness by incorporating these hashtag holidays in their marketing strategy. 

To help, we’ve compiled a list of some of the most popular social media holidays that you can bookmark, as well as a comprehensive downloadable calendar. Both are great resources to help you keep up with what’s trending and to help plan content that’s not only timely but fun and engaging. 

Odds are, you don’t celebrate all of these social media holidays as some might be simply too silly or irrelevant for your brand to engage with. But if you see a holiday that connects with your audience and the mission of your brand, add it to your content calendar. Don’t be afraid to think outside the box and have fun with the process!

Popular Social Media Holidays in 2021

January 

January 1 – New Year’s Day #NewYearsDay

January 4 – National Trivia Day #NationalTriviaDay

January 6 – National Technology Day #NationalTechnologyDay

January 11 – Clean Off Your Desk Day #CleanOffYourDeskDay

January 13 – National Sticker Day #NationalStickerDay

January 14 – Organize Your Home Day #OrganizeYourHomeDay

January 15 – Humanitarian Day #HumanitarianDay

January 15 – National Hat Day #NationalHatDay

January 16 – Get to Know Your Customers Day #GetToKnowYourCustomersDay

January 20 – Martin Luther King Jr. Day #MLKDay

January 23 – National Pie Day #PieDay

January 24 – National Compliment Day #NationalComplimentDay

January 25 – Opposite Day #OppositeDay

February

February 2 – Groundhog Day #GroundhogDay

February 4 – World Cancer Day #WorldCancerDay

February 7 – Super Bowl LV #SuperBowl2021 

February 9 – National Pizza Day #NationalPizzaDay

February 11 – Safer Internet Day #SID2021

February 11 – Inventors Day #InventorsDay

February 13 – Self-Love Day #SelfLoveDay

February 13 – World Radio Day #WorldRadioDay

February 14 – Valentine’s Day #ValentinesDay

February 15 – Presidents Day #PresidentsDay

February 16 – Mardi Gras #MardiGras

February 17 – Random Acts of Kindness Day #RandomActsOfKindnessDay

February 20 – Love Your Pet Day #LoveYourPetDay

February 22 – National Wildlife Day #NationalWildlifeDay

March

March 1 – National Peanut Butter Lover’s Day #PeanutButterLoversDay

March 2 – National Read Across America Day #ReadAcrossAmerica

March 3 – World Wildlife Day #WorldWildlifeDay

March 4 – National Grammar Day #GrammarDay 

March 4 – National Pancake Day #NationalPancakeDay

March 4 – World Book Day #WorldBookDay

March 5 – National Day of Unplugging #DayOfUnplugging 

March 6 – National Employee Appreciation Day #EmployeeAppreciationDay

March 6 – National Dentist’s Day #DentistsDay 

March 7 – National Cereal Day #NationalCerealDay

March 8 – International Women’s Day #InternationalWomensDay #IWD2021 #EachforEqual

March 8 – National Proofreading Day #NationalProofreadingDay

March 9 – Organize Your Home Office Day #OrganizeYourHomeOfficeDay

March 12 – Popcorn Lover’s Day #PopcornLoversDay

March 13 – World Sleep Day #WorldSleepDay

March 14 – Potato Chip Day #NationalPotatoChipDay

March 14 – Pi Day #PiDay

March 14 – Daylight Savings #DaylightSavings

March 15 – National Napping Day #NationalNappingDay

March 16 – National Freedom of Information Day #FreedomOfInformationDay

March 17 – St. Patrick’s Day #StPatricksDay

March 18 – Awkward Moments Day #NationalAwkwardMomentsDay

March 19 – National Let’s Laugh Day #NationalLetsLaughDay

March 20 – First Day of Spring #FirstDayofSpring

March 22 – World Water Day #WorldWaterDay #Water2me

March 23 – National Puppy Day #NationalPuppyDay

March 26 – National Spinach Day #NationalSpinachDay

March 26 – Purple Day #PurpleDay

April

April 1 – April Fools Day #AprilFools

April 1 – National Walking Day #NationalWalkingDay

April 2 –  World Autism Awareness Day #WAAD

April 7 – World Health Day #LetsTalk

April 10 – National Siblings Day #NationalSiblingsDay

April 11 – National Pet Day #NationalPetDay

April 15 – National Tax Day #TaxDay

April 15 – Get to Know Your Customers Day #GetToKnowYourCustomersDay

April 15 – National High-Five Day #NH5D

April 16 – National Stress Awareness Day #StressAwarenessDay

April 16 – Wear Your Pajamas to Work Day #PJDay

April 20 – National Look-Alike Day #NationalLookAlikeDay

April 21 – National Administrative Professionals Day #AdministrativeProfessionalsDay

April 22 – Earth Day #EarthDay2021

April 22 – Take Our Daughters & Sons to Work Day #COUNTONME

April 23 – National Picnic Day #NationalPicnicDay

April 25 – World Malaria Day #EndMalariaForGood

April 28 – Denim Day #DenimDay

April 30 – National Honesty Day #NationalHonestyDay

April 30 – International Jazz Day #JazzDay

April 30 – National Adopt a Shelter Pet Day #AdoptAShelterPetDay

April 30 – Arbor Day #ArborDay

May

May 1 – May Day #MayDay

May 4 – Star Wars Day #StarWarsDay

May 4 – Teacher Appreciation Day #TeacherAppreciation #ThankATeacher

May 5 – Cinco de Mayo #CincoDeMayo

May 5 – World Asthma Day #WorldAsthmaDay

May 6 – National Nurses Day #NursesDay

May 7 – World Password Day #WorldPasswordDay

May 9 – Mother’s Day #MothersDay

May 12 – National Receptionist Day #NationalReceptionistDay

May 15 – National Chocolate Chip Day #ChocolateChipDay

May 16 – Love a Tree Day #LoveATreeDay

May 24 – National Scavenger Hunt Day #NationalScavengerHuntDay

May 28 – Hamburger Day #NationalHamburgerDay

May 28 – Heat Awareness Day #NoFryDay

May 30 – National Creativity Day #NationalCreativityDay 

May 31 – Memorial Day #MemorialDay

June

June 4 – National Donut Day #NationalDonutDay

June 6 – National Cancer Survivor’s Day #NCSD2021

June 8 – World Oceans Day #WorldOceansDay

June 8 – Best Friends Day #BestFriendsDay 

June 11 – Make Life Beautiful Day #MakeLifeBeautiful

June 14 – National Flag Day #FlagDay

June 14 – World Blood Donor Day #GiveBlood

June 20 – First Day of Summer #FirstDayOfSummer

June 20 – Father’s Day #FathersDay

June 21 – National Selfie Day #NationalSelfieDay

June 21 – World Music Day #WorldMusicDay

June 21 –  International Yoga Day #InternationalYogaDay

June 27 – National Sunglasses Day #NationalSunglassesDay

June 30 – Social Media Day #SMDay, #SocialMediaDay

July

July 1 – National Postal Worker Day #NationalPostalWorkerDay

July 2 – World UFO Day #WorldUFODay

July 4 – Independence Day #July4th

July 6 – National Fried Chicken Day #NationalFriedChickenDay

July 7 – World Chocolate Day #WorldChocolateDay

July 12 – National Simplicity Day – #NationalSimplicityDay

July 15 – Give Something Away Day #GiveSomethingAwayDay

July 15 – Get to Know Your Customers Day #GetToKnowYourCustomersDay

July 17 – World Emoji Day #WorldEmojiDay

August

August 2 – National Coloring Book Day #NationalColoringBookDay

August 8 – International Cat Day #InternationalCatDay

August 9 – National Book Lovers Day #NationalBookLoversDay

August 11 – National Sons and Daughters Day #SonsAndDaughtersDay

August 12 – International Youth Day #YouthDay

August 13 – International Lefthanders Day #LefthandersDay

August 15 – National Relaxation Day #NationalRelaxationDay

August 16 – National Tell a Joke Day #NationalTellAJokeDay

August 19 –  World Photo Day #WorldPhotoDay

August 20 – National Lemonade Day #NationalLemonadeDay

August 26 – National Dog Day #NationalDogDay

August 26 – National Women’s Equality Day #WomensEqualityDay

September

September 6 – Read a Book Day #ReadABookDay

September 6 – Labor Day #LaborDay

September 8 – International Literacy Day #LiteracyDay

September 10 – Stand Up To Cancer Day #KissCancerGoodbye

September 11 – National Day of Service and Remembrance #911Day

September 12 – National Day of Encouragement #DayOfEncouragement

September 12 – National Video Games Day #NationalVideoGamesDay

September 12 – National Grandparents Day #NationalGrandparentsDay

September 19 – Talk Like a Pirate Day #TalkLikeAPirateDay

September 21 – World Alzheimer’s Day #Alzheimer’sDay

September 22 – First Day of Fall #1stDayOfFall

September 28 – World Rabies Day #WorldRabiesDay

September 28 – National Good Neighbor Day #GoodNeighborDay

September 29 – International Coffee Day #InternationalCoffeeDay

September 29 – National Women’s Health and Fitness Day #FitnessDay

September 30 – International Podcast Day #InternationalPodcastDay

October

October 4 – National Taco Day #NationalTacoDay

October 10 – World Mental Health Day #WorldMentalHeathDay

October 11 – International Day of the Girl #DayOfTheGirl

October 14 – National Dessert Day #DessertDay

October 15 – Global Handwashing Day #GlobalHandwashingDay

October 15 – Get to Know Your Customers Day #GetToKnowYourCustomersDay

October 16 – National Boss’s Day #NationalBossDay #BossDay #BestBossEver #HappyBossDay 

October 16 – World Food Day #FoodDay

October 17 – National Clean Your Virtual Desktop Day #CleanYourVirtualDesktopDay

October 25 – Greasy Foods Day #GreasyFoodsDay

October 28 – National Chocolate Day #NationalChocolateDay

October 30 – National Candy Corn Day #CandyCornDay

October 31 – Halloween #Halloween

November

November 1 – World Vegan Day #WorldVeganDay

November 1 – National Authors Day #NationalAuthorsDay

November 3 – National Sandwich Day #NationalSandwichDay

November 3 – International Stress Awareness Day #StressAwarenessDay

November 4 – National Candy Day #NationalCandyDay

November 7 – Daylight Saving Time Ends #DaylightSavings

November 8 – National Cappuccino Day #CappuccinoDay

November 8 – STEM Day #STEMDay

November 11 – Veterans Day #VeteransDay

November 13 – World Kindness Day #WKD

November 15 – Clean Out Your Refrigerator Day #CleanOutYourRefrigeratorDay

November 15 – America Recycles Day #BeRecycled

November 16 – National Entrepreneurs Day #EntrepreneursDay

November 25 – Thanksgiving Day #Thanksgiving

November 26 – Black Friday #BlackFriday #BlackFriday2021

November 26 – National Cake Day #NationalCakeDay

November 27 – Small Business Saturday #SmallBusinessSaturday

November 29 – Cyber Monday #CyberMonday

November 30 – Computer Security Day #ComputerSecurityDay

November 30 – Giving Tuesday #GivingTuesday

December

December 1 – World AIDS Day #WAD2020

December 4 – National Cookie Day #NationalCookieDay

December 10 – Human Rights Day #HumanRightsDay

December 10 – Nobel Prize Day #NobelPrize

December 11 – International Mountain Day #InternationalMountainDay

December 21 – Crossword Puzzle Day #CrosswordPuzzleDay

December 21 – First Day of Winter #WinterSolstice

December 25 – Christmas Day #Christmas

December 31 – New Year’s Eve #NewYearsEve

Disclaimer: The above list isn’t exhaustive. Dates and hashtags may still be subject to change. 

Tired of having to remember to post on social media? Struggling to come up with ideas of what to post? We can help. It’s kinda our thing! Call (888) 632-4499 or fill out our free consultation form.