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Last updated: July 24, 2021 – 214 hashtag holidays

This list starts with the hashtag holidays by day, followed by the celebration months. There’s a little duplication because that’s the nature of made up holidays. Some also rotate year-to-year and we’re still working at identifying those. If you know a holiday that’s missing or we’ve made a mistake, please let us know!

Hashtag holidays with rotating dates are identified by the year. Official public holidays have the country and state, if state-based.

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August 1

National Girlfriends Day | National Mountain Climbing Day | National Raspberry Cream Pie Day | Friendship Day (2021) | Respect for Parents Day | World Scout Scarf Day | Yorkshire Day | International Childfree Day | World Wide Web Day | Rounds Resounding Day | World Lung Cancer Day | India Pale Ale Day | National Raspberry Pie Day

August 2

National Ice Cream Sandwich Day | Coloring Book Day | International Beer Day | Picnic Day (NT, Australia)

August 3

National Watermelon Day | Clean Your Floors Day | Grab Some Nuts Day | White Wine Day

August 4

National Chocolate Chip Cookie Day | US Coast Guard Day | Twins Day | Festival Sisters’ Day | Assistance Dog Day | Doll Day | Single Working Women’s Day

August 5

National Mustard Day | National Underwear Day | Work Like a Dog Day | Psychic Day | National Oyster Day

August 6

Sisters Day | Wiggle Your Toes Day | International Forgiveness Day | Fresh Breath Day | National Sailor Moon Day | Farmworker Appreciation Day | National Root Beer Float Day | Balloons to Heaven Day

August 7

National Lighthouse Day | Sea Serpent Day | Purple Heart Day | Particularly Preposterous Packaging Day | Professional Speakers Day | Aged Care Employee Day | Disc Golf Day (2021) | Sandcastle Day (2021)

August 8

Sneak Some Zucchini onto Your Neighbor’s Porch Day | International Cat Day | Happiness Happens Day | Bowling Day | Odie Day | National Zucchini Day | National Frozen Custard Day | Scottish Wildcat Day | National CBD Day

August 9

Book Lover’s Day #NationalBookLoversDay | National Rice Pudding Day | Melon Day | Victory Day (RI, USA 2021)

August 10

National Lazy Day #NationalLazyDay | National S’mores Day | National Polka Festival | Duran Duran Appreciation Day | World Lion Day | Skyscraper Appreciation Day | Earth Overshoot Day | National Banana Split Day | Vlogging Day

August 11

Presidential Joke Day | Son and Daughter Day | Ingersoll Day | Play in the Sand Day | National Raspberry Tart Day | Royal Queensland Show (Brisbane, Qld, Australia)

August 12

Middle Child Day #MiddleChildDay | Vinyl Record Day | International Youth Day #YouthDay | World Elephant Day | Julienne Fries Day

August 13

International Lefthanders Day #LefthandersDay | Blame Someone Else Day | National Filet Mignon Day | National Prosecco Day | Black Women’s Equal Pay Day #BlackWomensEqualPayDay

August 14

National Creamsicle Day | Social Security Day | World Calligraphy Day | Tattoo Removal Day | Garage Sale Day (2021) | National Financial Awareness Day

August 15

National Relaxation Day #NationalRelaxationDay | National Failures Day | Check the Chip Day | Acadian Day | Julia Child’s Birthday | Lemon Meringue Pie Day | Cycle to Work Day

August 16

National Tell a Joke Day | Bratwurst Festival Rollercoaster Day | Airborne Day | Wave at the Surveillance Cameras Day | National Rum Day | Bennington Battle Day (VT, USA)

August 17

National Thrift Shop Day | Black Cat Appreciation Day | National Vanilla Custard Day

August 18

Bad Poetry Day | Mail Order Catalog Day | Serendipity Day | National Pinot Noir Day | National Soft Ice Cream Day

August 19

National Aviation Day | National Potato Day | Photography Day / World Photo Day #WorldPhotoDay | Humanitarian Day | International Orangutan Day | International Bow Day | Hot and Spicy Food Day

August 20

National Radio Day | World Mosquito Day | Lemonade Day | National Chocolate Pecan Pie Day | National Bacon Lovers Day | International Day of Medical Transporters | Men’s Grooming Day (2021) | Statehood Day (Admission Day) (HI, USA 2021)

August 21

National Spumoni Day | Senior Citizen’s Day | Poets Day | International Homeless Animals Day (2021) | World Honey Bee Day (2021) | Break the Monotony Day (2021) | International Geocaching Day (2021)

August 22

Be an Angel Day | National Tooth Fairy Day | Take Your Cat to the Vet Day | Eat a Peach Day | Pecan Torte Day

August 23

Ride the Wind Day | National Sponge Cake Day | Valentino Day | Cuban Sandwich Day | Daffodil Day

August 24

Vesuvius Day | Knife Day | International Strange Music Day | Pluto Demoted Day | Internaut Day | National Peach Pie Day | National Waffle Day

August 25

Kiss and Make Up Day | Franchise Appreciation Day | Whiskey Sour Day | Banana Split Day | Pony Express Day

August 26

Women’s Equality Day | National Dog Day #NationalDogDay | National Cherry Popsicle Day | Franchise Appreciation Day | Webmistress Day

August 27

Global Forgiveness Day | Just Because Day #JustBecauseDay | Petroleum Day | The Duchess Who Wasn’t Day | Tug-of-War Day | International Bat Night | National Pots de Crème Day | National Banana Lover’s Day

August 28

Chinese Valentine’s Day | Daughter’s Festival | Race Your Mouse Day | Race Your Mouse Around the Icons Day | World Sauntering Day | Bow Tie Day | Radio Commercials Day | Rainbow Bridge Remembrance Day | National Cherry Turnover Day | Crackers Over the Keyboard Day

August 29

More Herbs, Less Salt Day | Individual Rights Day | Chop Suey Day | Judgment Day from the Terminator Day | Potteries Bottle Oven Day

August 30

Frankenstein Day | National Toasted Marshmallow Day | Slinky Day | International Whale Shark Day | Holistic Pet Day | Grief Awareness Day | Lemon Juice Day | Frankenstein Day | College Colors Day

August 31

National Eat Outside Day | National Trail Mix Day | Love Litigating Lawyers Day | We Love Memoirs Day | Franchise Appreciation Day | Overdose Awareness Day

August Hashtag Holidays

Children’s Eye Health and Safety Month | National Eye Exam Month | Digestive Tract Paralysis Awareness Month | Gastroparesis Awareness Month | National Breastfeeding Month | National Immunization Awareness Month | Psoriasis Awareness Month | National Brownies at Brunch Month | National Catfish Month | National Panini Month | National Peach Month | National Sandwich Month | National Apple Week (second week of August)

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Photo by Debby Hudson on Unsplash