| Jan 1 | Dry January (UK) | |
| Jan 1 | Norton Month (Missouri) | |
| Jan 4 | Odd Socks Day (Australia) | |
| Jan 4 | Zero Gravity Day | |
| Jan 7 | National Nicolas Cage Day | |
| Jan 12 | Stick To Your New Year's Resolution Day | |
| Jan 17 | Education Freedom Day | |
| Jan 18 | International AHC Day | |
| Jan 19 | International Flower Day | |
| Jan 19 | National Gun Appreciation Day | |
| Jan 20 | Vendors Day (India) | |
| Jan 24 | Colorist Appreciation Day | |
| Jan 24 | Data Innovation Day | |
| Jan 25 | PitMad / Pitch Madness Day | |
| Jan 28 | International LEGO Day | |
| Jan 31 | Eat Brussels Sprouts Day | |
| Feb 1 | Femslash February | |
| Feb 1 | Information Governance Month | |
| Feb 1 | International Gruit Day | |
| Feb 1 | World Hijab Day | |
| Feb 2 | Rheumatoid Awareness Day | |
| Feb 2 | Twintail Day (Japan) | |
| Feb 5 | International Clash Day | |
| Feb 7 | Time to Talk Day (UK) | |
| Feb 8 | National Girl Scout Cookie Day | |
| Feb 9 | Chocolate Day (India) | |
| Feb 11 | Family Day (British Columbia) | |
| Feb 11 | Respect Week | |
| Feb 11 | Whitney Houston Appreciation Day | |
| Feb 13 | Palentine's Day | |
| Feb 15 | International Winter Bike to Work Day | |
| Feb 18 | Eat Ice Cream For Breakfast Day | |
| Feb 18 | International Jewish Day of Constructive Conflict | |
| Feb 19 | National Boston Terrier Day | Social Media |
| Feb 20 | National RA Appreciation Day | |
| Feb 21 | Global Information Governance Day | |
| Feb 22 | A Day Without News? | |
| Feb 22 | European Day for Victims of Crime | |
| Feb 23 | International Day of Mercury Control Commitment | |
| Feb 23 | Tootsie Roll Day | |
| Feb 24 | International 'I Hate Coriander' Day | |
| Feb 25 | Play More Cards Day | |
| Feb 26 | National Pistachio Day | |
| Feb 26 | Trayvon Martin Day | |
| Feb 28 | Introduce A Girl To Engineering Day | |
| Mar 1 | Transgender Month of Action for Healthcare Equality | |
| Mar 1 | World Futures Day | |
| Mar 3 | Triple Negative Breast Cancer Awareness Day | |
| Mar 4 | World Tennis Day | |
| Mar 8 | International School Meals Day | |
| Mar 9 | National Music Day (Indonesia) | |
| Mar 9 | Zangoose Day | |
| Mar 12 | Alloimmunization and HDFN Awareness Day | |
| Mar 14 | National Reuben Sandwich Day | |
| Mar 16 | Genealogy Day | |
| Mar 18 | 318 Day | |
| Mar 18 | Meat Free Week | |
| Mar 18 | NO MORE Week | |
| Mar 20 | Arizona Gives Day (Arizona) | |
| Mar 20 | International Day of Happiness | |
| Mar 20 | National Plagiocephaly and Torticollis Awareness Day | |
| Mar 20 | World Oral Health Day | |
| Mar 21 | International Day of Forests | |
| Mar 21 | World Wood Day | |
| Mar 24 | International Sauerkraut Day | |
| Mar 25 | National Cerebral Palsy Awareness Day | |
| Mar 28 | Tuskegee Airmen Commemoration Day (Arizona) | |
| Mar 30 | Black Country Day (UK) | |
| Mar 30 | International TableTop Day | |
| Mar 30 | Neighbour Day (Australia) | |
| Mar 31 | World Lipodystrophy Day | |
| Apr 3 | Weed Out Hate: Sow The Seeds of Greatness Day | |
| Apr 4 | International Rock Beat Day | |
| Apr 4 | World Drummers Day | |
| Apr 4 | World Plagiocephaly Day | |
| Apr 5 | Global Crowdfunding Day | |
| Apr 6 | International Search and Rescue Beacon / 406 Day | |
| Apr 6 | National Acai Bowl Day | |
| Apr 7 | National Slap Ass Day | Urban Dictionary |
| Apr 9 | Equal Pay Day (Canada) | |
| Apr 9 | Everglades Action Day | |
| Apr 9 | National Service Recognition Day | |
| Apr 9 | National Shine A Light On Slavery Day | |
| Apr 10 | National Youth HIV and AIDS Awareness Day | |
| Apr 11 | Brunch for Lunch Day | Jace Shoemaker-Galloway |
| Apr 13 | Functional Neurological Disorder (FND) International Awareness Day | |
| Apr 13 | Undiagnosed Children's Awareness Day (UK) | |
| Apr 14 | Day of the Skater | |
| Apr 14 | Global Day to End Child Sexual Abuse | |
| Apr 17 | National Officials Day (Canada) | |
| Apr 17 | Talk With Our Kids About Money Day (Canada) | |
| Apr 18 | National Pineapple Day | |
| Apr 20 | Hardware Freedom Day | |
| Apr 21 | International Hemp Day | |
| Apr 21 | Keep Off the Grass Day | Jace Shoemaker-Galloway |
| Apr 22 | Every Kid Healthy Week | |
| Apr 22 | Jack Nicholson Day | Social Media |
| Apr 23 | International Fibrodysplasia Ossificans Progressiva (FOP) Awareness Day | |
| Apr 24 | International Day of Feminist Solidarity Against Transnational Corporations | |
| Apr 24 | KY Gives Day (Kentucky) | |
| Apr 28 | Music Minister Appreciation Day | |
| Apr 29 | Viral Video Day | Jace Shoemaker-Galloway |
| Apr 30 | National Tie-Dye Day | |
| May 1 | Finger Lakes Wine Month | |
| May 1 | National Interpreter Appreciation Day | |
| May 1 | Preeclampsia Awareness Month | |
| May 1 | Williams Syndrome Awareness Month | |
| May 1 | World Wrestling Month | |
| May 2 | Idaho Gives Day (Idaho) | |
| May 2 | World Password Day | National Day Calendar |
| May 3 | International Leopard Day | |
| May 4 | Dave Brubeck Day | |
| May 4 | K.I.N.D. Day | |
| May 6 | International Clitoris Awareness Week | |
| May 6 | World Moyamoya Awareness Day | |
| May 7 | World Wide Day of Genital Autonomy | |
| May 8 | International Viking Day | |
| May 8 | National Day to Fight Institutional Violence (Argentina) | |
| May 9 | Give OUT Day | |
| May 11 | Mother Ocean Day | |
| May 11 | National Wear Red Pants Day | |
| May 13 | National Infrastructure Week | |
| May 13 | World Day of Football Coaches | |
| May 14 | Childhood Apraxia of Speech Awareness Day | |
| May 15 | National Children's Day (UK) | |
| May 16 | International Celiac Awareness Day | |
| May 16 | Mimosa Day | Jace Shoemaker-Galloway |
| May 16 | National Aperitif Day | |
| May 17 | 517 Day | |
| May 17 | International Art of Giving Day | |
| May 18 | Gruvia Day | |
| May 19 | World Pastry Day | |
| May 23 | National Fill Your Thermos Brand Bottle Day | |
| May 26 | World Sherry Day | |
| May 28 | World Day of Mixed Breed Dogs | |
| May 30 | Okroshka Day (Russia) | |
| May 31 | Web Designer Day | |
| Jun 1 | 601 Day | |
| Jun 1 | Beautiful in Your Skin Month | |
| Jun 1 | CDKL5 Awareness Month | |
| Jun 1 | California Avocado Month | |
| Jun 1 | Cancer Immunotherapy Month | |
| Jun 1 | Humility Month | |
| Jun 1 | Hydranencephaly Awareness Month | |
| Jun 1 | International Cavernous Angioma Awareness Month | |
| Jun 1 | Junesploitation | |
| Jun 1 | Nametag Day | |
| Jun 1 | Pelvic Organ Prolapse Awareness Month | |
| Jun 1 | Vidal Blanc Month (Missouri) | |
| Jun 3 | International Sommelier Day | |
| Jun 3 | World Clubfoot Day | |
| Jun 3 | World Orthoptic Day | |
| Jun 4 | World Day of Fertility | |
| Jun 5 | Ketchup Day | |
| Jun 5 | Wiltshire Day (UK) | |
| Jun 6 | Shriners International Awareness Day | |
| Jun 6 | World Tetris Day | |
| Jun 7 | International Tourettes Awareness Day | |
| Jun 8 | National Soulmate Day | Social Media |
| Jun 9 | National Stripper Appreciation Day | |
| Jun 10 | International Heraldry Day | |
| Jun 10 | World Art Nouveau Day | |
| Jun 11 | German Diversity Day (Germany) | |
| Jun 11 | Pizza Margherita Day | |
| Jun 12 | International Adobo Day | |
| Jun 12 | International Dubbing Day | |
| Jun 15 | DACA Anniversary | |
| Jun 15 | International Day of Latex | |
| Jun 15 | Lion King Day | |
| Jun 17 | CDKL5 Awareness Day | |
| Jun 17 | National Low-carbon Day (China) | |
| Jun 17 | National Tour Guides Day | |
| Jun 19 | National Dine Out Day | |
| Jun 20 | Brownie 620 Day | |
| Jun 21 | National Care Home Open Day (UK) | |
| Jun 24 | World Young Doctors Day | |
| Jun 26 | Support. Don't Punish. Global Day of Action | |
| Jun 26 | Tropical Cocktails Day | Jace Shoemaker-Galloway |
| Jun 27 | World Fragrance Day (Germany) | |
| Jun 28 | International PKU Day | |
| Jun 29 | Bartender and Mixologist Day | Jace Shoemaker-Galloway |
| Jun 29 | International Scoliosis Awareness Day | |
| Jun 29 | Redhead Day UK | |
| Jun 30 | Day of the Virtual Friend | Social Media |
| Jun 30 | StilL 630 Day | |
| Jul 1 | Blink 182 Day | |
| Jul 1 | Bobby Bonilla Day | Social Media |
| Jul 3 | Zine Distro Appreciation Day | |
| Jul 4 | National EO Day (UK) | |
| Jul 6 | International Save the Vaquita Day | |
| Jul 7 | Creative Maladjustment Week | |
| Jul 8 | Be a Kid Again Day | |
| Jul 10 | National Panic Awareness Day | |
| Jul 10 | National Subrogation Professional's Day | |
| Jul 10 | Srebrenica Memorial Day (UK) | |
| Jul 11 | Straw Free Day (Colorado) | |
| Jul 12 | Malala Day | |
| Jul 13 | Arctic Sea Ice Day | |
| Jul 14 | Feast of Saint Kateri Tekakwitha | |
| Jul 15 | Day of Ukrainian Peacekeepers | |
| Jul 15 | International Read Naked Day | |
| Jul 15 | National Dork Day | |
| Jul 15 | National Social Media Giving Day | |
| Jul 19 | National Tell A Girl She's Beautiful Day | |
| Jul 19 | Rojava Revolution Anniversary (Syria) | |
| Jul 20 | National Strawberry Rhubarb Wine Day | National Day Calendar |
| Jul 24 | Pie 'n' Beer Day (Utah) | |
| Jul 25 | National African American Hepatitis C Action Day | |
| Jul 25 | Rosalind Franklin Day | |
| Jul 25 | World Embryologist Day | |
| Jul 27 | Empty the Tanks Day | |
| Jul 28 | Longneck Day | |
| Jul 28 | National Fingerprint Day | |
| Jul 30 | Jimmy Hoffa Day | |
| Jul 31 | National Heatstroke Awareness Day | |
| Jul 31 | World MS Trend Day | |
| Aug 1 | Drawing August | |
| Aug 1 | Freedom to Marry Day (Minnesota) | |
| Aug 1 | International Childfree Day | |
| Aug 1 | Tree Check Month | |
| Aug 3 | International Blues Music Day | |
| Aug 6 | World Organ Donation Day | |
| Aug 8 | Dalek Day | |
| Aug 8 | Dying To Know Day (Australia) | |
| Aug 8 | Severe ME Awareness Day | |
| Aug 10 | Love Your Bookshop Day (Australia) | |
| Aug 10 | World Lion Day | |
| Aug 11 | Chef's Appreciation Week | |
| Aug 14 | International Memorial Day for Comfort Women | |
| Aug 16 | 816 Day | |
| Aug 16 | International Apostrophe Day | |
| Aug 17 | Chef's Appreciation Day | |
| Aug 17 | Feast Day of Our Lady of Knock | |
| Aug 17 | National Model Aviation Day | |
| Aug 20 | Neymarzetes Day (Brazil) | |
| Aug 23 | World Vada Pav Day | |
| Aug 25 | Black Breastfeeding Week | |
| Aug 25 | Day of Songun (North Korea) | |
| Aug 25 | National Fantasy Football Draft Day | |
| Aug 25 | Polish Food Day (Poland) | |
| Aug 27 | National Burger Day (UK) | |
| Aug 28 | Rainbow Bridge Remembrance Day | |
| Aug 31 | International Play Music on the Porch Day | |
| Aug 31 | Romanian Language Day (Romania) | |
| Aug 31 | We Love Memoirs Day | |
| Sep 1 | National Attendance Awareness Month | |
| Sep 1 | Sourdough September (UK) | |
| Sep 4 | 904 Day | |
| Sep 4 | National Polycystic Kidney Disease / PKD Awareness Day | |
| Sep 5 | International Day of Charity | |
| Sep 6 | National Little Black Dress Day (Australia) | |
| Sep 7 | 907 Day | |
| Sep 7 | International Cassette Store Day | |
| Sep 7 | Seven of Nine Day | |
| Sep 8 | World Gravity Day | |
| Sep 8 | Worldwide Cystic Fibrosis Day | |
| Sep 9 | International Buy a Priest a Beer Day | |
| Sep 9 | International Sudoku Day | |
| Sep 12 | Cycle to Work Day (UK) | |
| Sep 12 | MPN Awareness Day | |
| Sep 13 | International Mountain Chicken Frog Day | |
| Sep 14 | Philip K. Dick Day (California) | |
| Sep 15 | Someday | |
| Sep 16 | National Teaching Assistants' Day (UK) | |
| Sep 17 | Kleefstra Syndrome Awareness Day | |
| Sep 17 | National G Day / 917 Day (Philippines) | |
| Sep 18 | Big Brothers Big Sisters Day (Canada) | |
| Sep 18 | International Pitt Hopkins Awareness Day | |
| Sep 18 | National Ceiling Fan Day | |
| Sep 20 | Mac Miller Day (Pittsburgh) | |
| Sep 21 | George Harrison Day (Illinois) | |
| Sep 21 | National Learn To Code Day (Canada) | |
| Sep 21 | World Juice Day (Russia) | |
| Sep 22 | National Eat Local Day | |
| Sep 24 | World Day of Thyroid Cancer | |
| Sep 26 | Last of Us Day | |
| Sep 26 | Remember Me Thursday | |
| Sep 28 | World Day of Retinitis Pigmentosa | |
| Sep 30 | Orange Shirt Day / National Day for Truth and Reconciliation (Canada) | |
| Oct 1 | BFRB Awareness Week | |
| Oct 1 | Black Speculative Fiction Month | |
| Oct 1 | Customer Experience / CX Day | |
| Oct 1 | National Home Security Month | |
| Oct 1 | World Skin Health Day | |
| Oct 2 | International Chhole Bhature Day | |
| Oct 4 | French Canadian Heritage Day (Michigan) | |
| Oct 5 | Barrel-Aged Beer Day | |
| Oct 5 | Datil Pepper Day (Florida) | |
| Oct 7 | International Trigeminal Neuralgia Awareness Day | |
| Oct 8 | International Percy Jackson Day | |
| Oct 8 | World Humanitarian Action Day | |
| Oct 9 | World PANS/PANDAS Awareness Day | |
| Oct 10 | International Stage Management Day | |
| Oct 10 | National Handbag Day | |
| Oct 11 | National Day of Asado (Argentina) | |
| Oct 11 | National Haunted House Day | |
| Oct 11 | World Biryani Day | |
| Oct 13 | UK Fungus Day (UK) | |
| Oct 14 | National Heroes Day (Bahamas) | |
| Oct 15 | Lucille Ball Day | |
| Oct 15 | National Flex Day | |
| Oct 15 | Pacific Leatherback Conservation Day (California) | |
| Oct 15 | Shwmae Su'mae Day (UK) | |
| Oct 15 | Shwmae Sumae Day (Wales) | |
| Oct 15 | World Idic15 Awareness Day | |
| Oct 16 | Restart A Heart Day | |
| Oct 17 | National Bioenergy Day | |
| Oct 18 | World Vasectomy Day | |
| Oct 19 | World Day Against Fracking | |
| Oct 20 | International Mobile Photography Day | |
| Oct 20 | National Police Officer's Spouses' Day | |
| Oct 22 | National Love Your Melon Day | |
| Oct 23 | Global Day of Action for Child Survival | |
| Oct 23 | National Croc Day | |
| Oct 24 | World Polio Day | |
| Oct 24 | World Tripe Day | |
| Oct 25 | National Shoe Lover Day | |
| Oct 25 | World Dwarfism Awareness Day | |
| Oct 26 | Post Polio Syndrome Day (UK) | |
| Oct 30 | Mine Rescue Day | |
| Oct 30 | Pumpkin Bread Day | Jace Shoemaker-Galloway |
| Oct 30 | World Audio Drama Day | |
| Oct 30 | World Day of Bodybuilding | |
| Oct 30 | World Hypophosphatasia (HPP) Day | |
| Oct 30 | World Puddle Jumping Day (UK) | |
| Nov 1 | National Brush Your Teeth Day | |
| Nov 1 | World Candle Month | |
| Nov 2 | National Assata Shakur Liberation Day | |
| Nov 3 | Flag Day (UAE) | |
| Nov 3 | National Patient Transport Week | |
| Nov 3 | World Cosplay Day | |
| Nov 4 | National Day of Mourning (Hungary) | |
| Nov 4 | Tomorrow's Engineers Week (UK) | |
| Nov 5 | International Nystagmus Awareness Day | |
| Nov 5 | Law Enforcement Records and Support Personnel Day | |
| Nov 7 | Day of the Hungarian Opera (Hungary) | |
| Nov 7 | International Day of Medical Physics | |
| Nov 7 | International Merlot Day | |
| Nov 10 | Grandparents' Day (South Sudan) | |
| Nov 11 | Kolsch Day | |
| Nov 11 | Red Lipstick Day | |
| Nov 11 | World Nursery Rhyme Week | |
| Nov 12 | Thanks, Birth Control Day | |
| Nov 13 | National Housing Day (UK) | |
| Nov 15 | Buy Local Month (Low Country) | |
| Nov 15 | International 15q Day | |
| Nov 15 | Prader-Willi Syndrome Awareness Day | |
| Nov 15 | School Board Member Day (Illinois) | |
| Nov 16 | World Falconry Day | |
| Nov 19 | American Made Matters Day | |
| Nov 19 | International Journalists Remembrance Day | |
| Nov 19 | World Toilet Day | |
| Nov 20 | National Headwrap Day | |
| Nov 21 | National Tree Day (Italy) | |
| Nov 22 | Day of Remembrance for President John F. Kennedy | |
| Nov 22 | National Mining and Related Industries Day (Australia) | |
| Nov 24 | National Bicycle Day (Philippines) | |
| Nov 25 | CNSO Day (India) | |
| Nov 29 | National Jersey Day | National Day Calendar |
| Nov 30 | Canadian Craft Beer Day | |
| Nov 30 | International Day Against Eating Disorders | |
| Nov 30 | World Day of Giving | |
| Dec 1 | James Gandolfini Day (New Jersey) | |
| Dec 1 | National Grinch Day | |
| Dec 3 | 3D Printing Day | |
| Dec 3 | Giving Tuesday (UK) | |
| Dec 4 | National Kitten Day | |
| Dec 4 | National Missing Persons Day (Ireland) | |
| Dec 5 | World Turkish Coffee Day | |
| Dec 6 | Dogecoin's Birthday | |
| Dec 7 | Bath & Body Works' Candle Day | |
| Dec 7 | National Rhubarb Vodka Day | |
| Dec 7 | National Small Business Day (UK) | |
| Dec 8 | Day of Loyalty and Love for Hugo Chavez (Venezuela) | |
| Dec 8 | Pansexual Pride Day | |
| Dec 12 | National Pigs In Blankets Day (UK) | |
| Dec 13 | International ACAB Day | |
| Dec 14 | National "WTF Happened to Surf?" Day | |
| Dec 16 | Global Day of Joy | |
| Dec 16 | Nirbhaya Anniversary (India) | |
| Dec 18 | National HODL Day | |
| Dec 18 | World Minorities Rights Day (India) | |
| Dec 19 | Chocolate Pizza Day | |
| Dec 26 | Unbottling Day | |
