| 01.01 | Public Domain Day | |
| 01.01 | Euro Day | European Union |
| 02.01 | National Motivation and Inspiration Day | USA |
| 02.01 | National Pet Travel Safety Day | USA |
| 08.01 | Typing Day | |
| 08.01 | Marrow Donor Day in Armenia | Armenia |
| 08.01 | National Gluten-Free Day | USA |
| 09.01 | Non-resident Indian Day | India |
| 10.01 | Dial 110 Day in Japan | Japan |
| 11.01 | Children's Day in Tunisia | Tunisia |
| 11.01 | German Apples Day | Germany |
| 11.01 | National Human Trafficking Awareness Day | USA |
| 12.01 | National Youth Day in India | India |
| 12.01 | Kiss a Ginger Day | |
| 14.01 | Unknown Citizens’ Day in the Philippines | Philippines |
| 16.01 | National Without a Scalpel Day | USA |
| 21.01 | Grandmother’s Day in Poland | Poland |
| 22.01 | Grandfather's Day in Poland | Poland |
| 24.01 | Father's Day in Islamic Countries | Iran, Somalia, Sudan, Mauritania |
| 24.01 | National Girl Child Day in India | India |
| 25.01 | National Voter's Day in India | India |
| 26.01 | Men’s Day in Iceland | Iceland |
| 26.01 | National Preschool Health and Fitness Day | USA |
| 28.01 | Data Privacy Day | |
| 29.01 | National Trans Visibility Day in Brazil | Brazil |
| 30.01 | National Plan for Vacation Day | USA |
| 31.01 | National Bug Busting Day in the UK | United Kingdom |
| 02.02 | National Wear Red Day in the United States | USA |
| 02.02 | Youth Day in Azerbaijan | Azerbaijan |
| 02.02 | Sled Dog Day | |
| 03.02 | National Pisco Sour Day in Peru | Peru |
| 03.02 | National Golden Retriever Day | USA |
| 03.02 | National Missing Persons Day | USA |
| 04.02 | National Hemp Day | USA |
| 05.02 | New Zealand Rosé Day | New Zealand |
| 06.02 | National/International Frozen Yogurt Day | |
| 06.02 | Food Freedom Day in Canada | Canada |
| 07.02 | National Black HIV/AIDS Awareness Day | USA |
| 07.02 | National Girls and Women in Sports Day | USA |
| 08.02 | Giving Hearts Day | USA |
| 11.02 | World Marriage Day | |
| 11.02 | Racial Justice Sunday in the UK | United Kingdom |
| 11.02 | Mother's Day in Norway | Norway |
| 11.02 | European 112 Day | European Union |
| 12.02 | Sexual and Reproductive Health Awareness Day | |
| 12.02 | Darwin Day | |
| 12.02 | Youth Day in Venezuela | Venezuela |
| 12.02 | Red Hand Day | |
| 12.02 | Bun Day (Bolludagur) in Iceland | Iceland |
| 13.02 | Pancake Day | |
| 13.02 | Wear Red Canada | Canada |
| 14.02 | National No Smoking Day in Ireland | Ireland |
| 14.02 | V-Day | |
| 14.02 | National Donor Day | USA |
| 17.02 | National PTA Founders’ Day | USA |
| 17.02 | National Red Sock Day | USA |
| 18.02 | Drink Wine Day | |
| 19.02 | Prevent Plagiarism Day | |
| 21.02 | Youth Day in Iran | Iran |
| 22.02 | Founders' Day (B-P Day) | |
| 22.02 | World Thinking Day | |
| 22.02 | National Heart Valve Disease Awareness Day | USA |
| 24.02 | Curling Day in Canada | Canada |
| 25.02 | Women’s Day in Iceland | Iceland |
| 27.02 | Anosmia Awareness Day | |
| 27.02 | National Protein Day in India | India |
| 28.02 | Pink Shirt Day in Canada | Canada |
| 01.03 | Self-injury Awareness Day | |
| 03.03 | Children's Day in New Zealand | New Zealand |
| 03.03 | National Grandmothers' Day in France | France |
| 05.03 | Scouts’ Day in Taiwan | Taiwan |
| 06.03 | Day of the Dude | |
| 07.03 | Lesbian Visibility Day in Argentina | Antigua and Barbuda |
| 08.03 | Mother's Day in Albania and Laos | Albania, Laos |
| 10.03 | Mothering Sunday (Mother's Day) | United Kingdom, Ireland, Nigeria |
| 10.03 | National Women and Girls HIV/AIDS Awareness Day | USA |
| 11.03 | National 311 Day | USA |
| 12.03 | National Working Moms Day | USA |
| 12.03 | Detrans Awareness Day | |
| 13.03 | No Smoking Day in the UK | United Kingdom |
| 13.03 | K9 Veterans Day | USA |
| 16.03 | National Vaccination Day in India | India |
| 17.03 | National Children Day in Bangladesh | Bangladesh |
| 20.03 | National Native HIV/AIDS Awareness Day | USA |
| 21.03 | Mother's Day in the Arab World | Egypt, Bahrain, Iraq, Jordan, Kuwait, Libya, Lebanon, Oman, State of Palestine, Qatar, Saudi Arabia, Syria, Sudan, UAE, Yemen |
| 21.03 | Youth Day in Tunisia | Tunisia |
| 21.03 | National Rosie the Riveter Day in the United States | USA |
| 21.03 | National Single Parent Day (Single Parents’ Day) | USA, United Kingdom |
| 22.03 | Day of the Berlin Bear | Germany |
| 25.03 | Mother’s Day in Slovenia | Slovenia |
| 26.03 | American Diabetes Association Alert Day | USA |
| 29.03 | Youth Day in Taiwan | Taiwan |
| 29.03 | National Mom and Pop Business Owners Day | USA |
| 30.03 | Homeless Persons Day in Russia | Russia |
| 30.03 | National Virtual Vacation Day | USA |
| 04.04 | 404 Day | USA |
| 05.04 | Quds Day | Iran |
| 05.04 | Children's Day in Palestine | State of Palestine |
| 06.04 | National Student-Athlete Day | USA |
| 07.04 | Maternity and Beauty Day in Armenia | Armenia |
| 07.04 | Green Shirt Day in Canada | Canada |
| 09.04 | National Nuclear Technology Day in Iran | Iran |
| 10.04 | International Day of Pink in Canada | Canada |
| 10.04 | National Youth HIV/AIDS Awareness Day | USA |
| 11.04 | National Pet Day | USA |
| 11.04 | National Living Donor Day | USA |
| 11.04 | National Submarine Day | USA |
| 11.04 | Dog Therapy Appreciation Day | |
| 12.04 | Children's Day in Bolivia | Bolivia |
| 12.04 | Scouts’ Day in Ukraine | Ukraine |
| 14.04 | Children's Day in Peru | Peru |
| 14.04 | Angolan Youth Day | Angola |
| 14.04 | Tannat Day in Uruguay | Uruguay |
| 14.04 | National Ex-Spouse Day | USA |
| 15.04 | Jackie Robinson Day | USA |
| 15.04 | Children's Day in Spain | Spain |
| 16.04 | National Healthcare Decisions Day / Advance Care Planning Day | USA, Canada |
| 16.04 | Emancipation Day in the District of Columbia | USA |
| 17.04 | Malbec World Day | Argentina |
| 18.04 | Coma Patient Day in Poland | Poland |
| 18.04 | Aliyah Day in Israel | Israel |
| 18.04 | Scouts’ Day in Armenia | Armenia |
| 18.04 | Adult Autism Awareness Day | USA |
| 18.04 | National Transgender HIV Testing Day | USA |
| 19.04 | Congenital Diaphragmatic Hernia Action Day | |
| 20.04 | National Donor Day in Russia | Russia |
| 20.04 | National Consumer Day in Indonesia | Indonesia |
| 21.04 | Day of Local Self-Government in Russia | Russia |
| 21.04 | National Kindergarten Day | USA |
| 22.04 | Girl Scout Leader's Day | USA |
| 23.04 | Scouts’ Day | Brazil, United Kingdom, Denmark, Spain, Mexico, Portugal, Czech Republic |
| 23.04 | National Asparagus Day in the UK | United Kingdom |
| 24.04 | Denim Day | |
| 24.04 | Fashion Revolution Day | |
| 25.04 | Take Our Daughters and Sons to Work Day | USA |
| 25.04 | Regional Autonomy Day in Indonesia | Indonesia |
| 26.04 | National Dissertation Day | USA |
| 27.04 | Children's Day in Colombia | Colombia |
| 27.04 | National Transportation Safety Day in Iran | Iran |
| 30.04 | Honesty Day | USA |
| 30.04 | Children's Day in Mexico | Mexico |
| 30.04 | National Bubble Tea Day | USA, Taiwan |
| 30.04 | National Therapy Animal Day | USA |
| 01.05 | EuroMayDay | |
| 02.05 | National Day of Reason | USA |
| 04.05 | Join Hands Day | |
| 04.05 | National Homebrew Day | USA |
| 04.05 | (Inter)National Scrapbook Day | |
| 04.05 | National Fitness Day | USA |
| 05.05 | Children's Sunday in Tonga | Tonga |
| 05.05 | Mother’s Day | Lithuania, Hungary, Mozambique, Portugal, Romania, Spain, Angola, Cape Verde |
| 05.05 | National Lemonade Day | USA, Canada |
| 06.05 | Melanoma Monday | USA |
| 07.05 | National Barrier Awareness Day in the United States | USA |
| 07.05 | National Child & Youth Mental Health Day in Canada | Canada |
| 07.05 | National Foster Care Day | USA |
| 08.05 | Parents' Day in South Korea | South Korea |
| 08.05 | Women’s Historic Night in Norway | Norway |
| 08.05 | Emancipation Day in Mississippi | USA |
| 08.05 | National Amyloidosis Day in Australia | Australia |
| 09.05 | Father's Day in Germany | Germany |
| 09.05 | National Home Front Heroes Day in the United States | USA |
| 09.05 | Canadian Viral Hepatitis Elimination Day | Canada |
| 10.05 | Military Spouse Appreciation Day in the USA | USA |
| 10.05 | Mother's Day in El Salvador, Guatemala and Mexico | Guatemala, Mexico, El Salvador |
| 10.05 | Children's Day in the Maldives | Maldives |
| 10.05 | Working Mothers Day | USA |
| 11.05 | National Technology Day in India | India |
| 12.05 | Mother’s Day | Anguilla, Antigua and Barbuda, Australia, Austria, Aruba, Bahamas, Bangladesh, Barbados, Belgium, Bermuda, Belize, Bonaire, St Eustatius and Saba, Brazil, Botswana, Brunei, Cambodia, Canada, Chile, China, Colombia, Cuba, Curaçao, Cyprus, Croatia, Czech Republic, Denmark, Dominica, Ecuador, Estonia, Ethiopia, Fiji, Finland, Germany, Ghana, Grenada, Greece, Guyana, Honduras, Hong Kong, Iceland, India, Italy, Japan, Jamaica, Liberia, Liechtenstein, Latvia, Macau, Malaysia, Malta, Myanmar, Netherlands, New Zealand, Pakistan, Papua New Guinea, Peru, Puerto Rico, Philippines, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, Singapore, Sint Maarten, Slovakia, South Africa, Sri Lanka, Switzerland, Suriname, Tonga, Taiwan, Trinidad and Tobago, Turkey, Ukraine, Uganda, USA, Uruguay, Vietnam, Venezuela, Zambia, Zimbabwe |
| 12.05 | Father's Day in Romania | Romania |
| 12.05 | National Women’s Checkup Day | USA |
| 14.05 | National Denim Day in Canada | Canada |
| 14.05 | Anti-Stalking Day in Ukraine | |
| 17.05 | Children’s Day in Norway | Norway |
| 17.05 | Pink Shirt Day in New Zealand | New Zealand |
| 18.05 | Neighbor Day in Kyiv | Ukraine |
| 19.05 | Hepatitis Testing Day in the USA | USA |
| 19.05 | Mother's Day in Kyrgyzstan | Kyrgyzstan |
| 19.05 | Father's Day in Tonga | Tonga |
| 19.05 | National Asian & Pacific Islander HIV/AIDS Awareness Day | USA |
| 19.05 | Scouts’ Day in Croatia | Croatia |
| 19.05 | National Mechanical Dry Eye Day | USA |
| 20.05 | Josephine Baker Day | USA |
| 21.05 | Anti-Terrorism Day in India | India |
| 22.05 | Harvey Milk Day in the USA | USA |
| 22.05 | World Goth Day | |
| 22.05 | Girl Scout Day in Japan | Japan |
| 23.05 | Youth Day in Tajikistan | Tajikistan |
| 24.05 | Walk Safely to School Day in Australia | Australia |
| 24.05 | Pansexual Visibility Day | |
| 26.05 | Mother's Day | France, Algeria, Dominican Republic, Madagascar, Morocco, Haiti, Mauritius, Senegal, Sweden, Tunisia, Guadeloupe, Martinique, Saint Martin, Saint Barthelemy |
| 26.05 | Children's day in Hungary | Hungary |
| 26.05 | Mother’s Day in Poland | Poland |
| 27.05 | Mother's Day in Bolivia | Bolivia |
| 27.05 | National Gray Day | USA |
| 28.05 | Menstrual Hygiene Day | |
| 28.05 | National Multiple Births Awareness Day in Canada | Canada |
| 28.05 | National Reflexology Day in Canada | Canada |
| 29.05 | National Elderly Day in Indonesia | Indonesia |
| 29.05 | National 529 Day in the United States | USA |
| 29.05 | National Senior Health & Fitness Day | USA |
| 30.05 | Take a Girl Child to Work Day in South Africa | South Africa |
| 30.05 | Foster Care Day in Poland | Poland |
| 30.05 | National Scout Day in Maldives | Maldives |
| 31.05 | European Neighbors' Day | |
| 31.05 | Scouts’ Day in Vietnam | Vietnam |
| 31.05 | Necrotizing Fasciitis Awareness Day | |
| 31.05 | National Heat Awareness Day | USA |
| 01.06 | Day Without Alcohol in Poland | Poland |
| 01.06 | National Heimlich Maneuver Day | USA |
| 01.06 | Intergenerational Day Canada | Canada |
| 01.06 | National Health and Fitness Day in Canada | Canada |
| 01.06 | National Go Barefoot Day | USA |
| 02.06 | National Cancer Survivors Day | USA, Ukraine |
| 02.06 | Father's Day in Switzerland | Switzerland |
| 04.06 | National SAFE Day in the United States | USA |
| 05.06 | Father's Day in Denmark | Denmark |
| 05.06 | HIV Long-Term Survivors Awareness Day | USA |
| 06.06 | Visually Impaired People Day in Germany | Germany |
| 08.06 | National Caribbean American HIV/AIDS Awareness Day | USA |
| 09.06 | Father's Day in Austria and Belgium | Belgium, Austria |
| 09.06 | Mother's Day in Luxembourg | Luxembourg |
| 10.06 | National Children Day in Haiti | Haiti |
| 10.06 | Durif Day | |
| 10.06 | Eat Flexitarian Day | USA, Canada |
| 10.06 | Action Anxiety Day in Canada | Canada |
| 11.06 | National Call Your Doctor Day | USA |
| 11.06 | Multiple Sclerosis Day in Russia | Russia |
| 12.06 | Helsinki Day in Finland | Finland |
| 12.06 | Loving Day | USA |
| 13.06 | National Random Acts of Light Day | USA |
| 15.06 | World Juggling Day | |
| 15.06 | National Bug Busting Day in the UK | United Kingdom |
| 16.06 | Father's Day | Argentina, United Kingdom, Venezuela, Haiti, Hong Kong, Colombia, Costa Rica, Ivory Coast, Cuba, Malaysia, Malta, Mexico, Netherlands, Peru, USA, Finland, France, Chile, Switzerland, Ecuador, Japan, Afghanistan, Albania, Antigua and Barbuda, Aruba, Bahamas, Bahrain, Bangladesh, Barbados, Belize, Bermuda, Brunei, Cambodia, Canada, Curaçao, Cyprus, Czech Republic, Dominica, Ethiopia, Ghana, Greece, Guyana, China, Hungary, India, Ireland, Jamaica, Kuwait, Laos, Macau, Madagascar, Mauritius, Myanmar, Namibia, Nigeria, Oman, Pakistan, Panama, Paraguay, Puerto Rico, Philippines, Qatar, Saint Lucia, Saint Vincent and the Grenadines, Singapore, Slovakia, South Africa, Sri Lanka, Suriname, Trinidad and Tobago, Tunisia, Turkey, Vietnam, Zimbabwe, Zambia, Isle of Man, Jersey, Ukraine |
| 17.06 | Father's Day in El Salvador and Guatemala | El Salvador, Guatemala |
| 18.06 | Human Rights Day in Azerbaijan | Azerbaijan |
| 18.06 | Autistic Pride Day | |
| 19.06 | FreeBSD Day | |
| 20.06 | National Dump the Pump Day | USA |
| 21.06 | Father's Day in Arab Countries and Uganda | Lebanon, Jordan, Egypt, Syria, Uganda, State of Palestine, UAE |
| 21.06 | Take Your Dog to Work Day | USA, Canada, United Kingdom, Australia, New Zealand |
| 22.06 | National Pet Choking Prevention Day | USA |
| 23.06 | Father's Day in Poland and Nicaragua | Poland, Nicaragua |
| 25.06 | National Iodine Day in Thailand | Thailand |
| 26.06 | National Cancer Wellness Awareness Day in Canada | Canada |
| 27.06 | National PTSD Awareness Day in the USA | USA |
| 27.06 | National Sunglasses Day in the United States | USA |
| 27.06 | National Bingo Day | USA, United Kingdom |
| 28.06 | National Insurance Awareness Day | USA |
| 28.06 | National Cream Tea Day in the UK | United Kingdom |
| 29.06 | Youth Day in Russia | Russia |
| 29.06 | National Family Day in Indonesia | Indonesia |
| 30.06 | Youth and Students Day in Belarus | Belarus |
| 30.06 | Day of Youth and Children’s Public Organizations in Ukraine | Ukraine |
| 30.06 | Father’s Day in Haiti | Haiti |
| 30.06 | Lovers’ Day in Azerbaijan | Azerbaijan |
| 01.07 | Mother's Day in South Sudan | South Sudan |
| 01.07 | American Zoo Day | USA |
| 01.07 | Scouts’ Day in Thailand | Thailand |
| 02.07 | Indian Coming Out Day | India |
| 03.07 | Myanmar Women’s Day | Myanmar |
| 05.07 | National Injury Prevention Day in Canada | Canada |
| 06.07 | World Kissing Day | |
| 07.07 | Youth Day in Singapore | Singapore |
| 08.07 | Disabled and Elderly Persons Day in Tajikistan | Tajikistan |
| 09.07 | Lesbian Visibility Day in Chile | Chile |
| 10.07 | Chronic Disease Day | USA |
| 11.07 | Maritime Day in China | China |
| 11.07 | Slurpee Day | |
| 12.07 | Malala Day | |
| 14.07 | Father’s Day in Uruguay | Uruguay |
| 15.07 | Social Media Giving Day | USA |
| 15.07 | National Pet Fire Safety Day | USA |
| 16.07 | National DRESS Syndrome Day | USA |
| 17.07 | National Lottery Day | USA, Canada |
| 21.07 | Children’s Day in Panama | Panama |
| 21.07 | Children's Day in Cuba and Venezuela | Cuba, Venezuela |
| 21.07 | National Be Someone Day | USA |
| 21.07 | Fibroids Awareness Day in Canada | Canada |
| 22.07 | National Fragile X Awareness Day | USA |
| 23.07 | National Children's Day in Indonesia | Indonesia |
| 23.07 | National Women Touched by Addiction Day | USA |
| 25.07 | National Schizophrenia Awareness Day in the UK | United Kingdom |
| 25.07 | National Hire a Veteran Day | USA |
| 26.07 | National Disability Independence Day in the United States | USA |
| 28.07 | Father's Day in the Dominican Republic | Dominican Republic |
| 28.07 | Parents' Day in the USA | USA |
| 28.07 | National Pisco Day in Peru | Peru |
| 30.07 | National Whistleblower Appreciation Day | USA |
| 30.07 | National Support Public Education Day in the United States | USA |
| 31.07 | National Blood Donor Day in Iran | Iran |
| 31.07 | National Mutt Day | USA |
| 01.08 | World Scout Scarf Day | |
| 01.08 | National Minority Donor Awareness Day | USA |
| 03.08 | National Disc Golf Day | USA |
| 04.08 | Friendship Day | |
| 04.08 | National Aboriginal and Torres Strait Islander Children’s Day in Australia | Australia |
| 06.08 | National Night Out in the USA | USA |
| 07.08 | National Lighthouse Day | USA |
| 08.08 | Father's Day in Taiwan | Taiwan |
| 08.08 | International Cat Day | |
| 08.08 | Happiness Happens Day | |
| 08.08 | National Pickleball Day | USA |
| 10.08 | Athletic Day in Tajikistan | Tajikistan |
| 10.08 | National Pickleball Day in Canada | Canada |
| 11.08 | Children's Day in Uruguay | Uruguay |
| 11.08 | Children's Day in Chile | Chile |
| 11.08 | Father's Day in Brazil | Brazil |
| 12.08 | NGO Day in Iran | Iran |
| 12.08 | Youth Day in Ukraine | Ukraine |
| 12.08 | National Thai Textile Day | Thailand |
| 16.08 | Children's Day in Paraguay | Paraguay |
| 16.08 | Men’s Grooming Day | |
| 17.08 | National Nonprofit Day | USA |
| 18.08 | Children's Day in Argentina | Argentina |
| 19.08 | Lesbian Pride Day in Brazil | Brazil |
| 20.08 | Southern HIV/AIDS Awareness Day | USA |
| 21.08 | National Senior Citizens Day | USA |
| 22.08 | National Rainbow Baby Day | USA |
| 26.08 | National Dog Day | USA |
| 26.08 | National Day of Solidarity in Argentina | Argentina |
| 28.08 | Grandparents’ Day in Mexico | Mexico |
| 28.08 | Emirati Women’s Day | UAE |
| 28.08 | National Power Rangers Day | USA |
| 29.08 | National Lesbian Visibility Day in Brazil | Brazil |
| 30.08 | Wear It Purple Day | Australia |
| 31.08 | Baloch-Pakhtun Unity Day | |
| 01.09 | Father's Day | Australia, New Zealand, Papua New Guinea, Fiji |
| 01.09 | Cap Classique Day in South Africa | South Africa |
| 02.09 | Tibetan Democracy Day | |
| 04.09 | Cooperation Day in Iran | Iran |
| 04.09 | National Customer Day in Indonesia | Indonesia |
| 05.09 | Scouts’ Day in Argentina | Argentina |
| 06.09 | Bravehearts Day in Australia | Australia |
| 06.09 | National Food Bank Day | USA |
| 06.09 | Younger Sister’s Day in Japan | Japan |
| 08.09 | Grandparents' Day in the Philippines | Philippines |
| 08.09 | Grandparents' Day in Estonia | Estonia |
| 08.09 | Family Day in Kazakhstan | Kazakhstan |
| 08.09 | National Pet Memorial Day | USA |
| 09.09 | Children's Day in Costa Rica | Costa Rica |
| 10.09 | Children's Day in Honduras | Honduras |
| 12.09 | National Day of Encouragement in the USA | USA |
| 12.09 | R U OK? Day | Australia |
| 12.09 | Stand Up Against Bullying Day in Nova Scotia | Canada |
| 13.09 | National Celiac Disease Awareness Day | USA |
| 13.09 | National Cachaça Day in Brazil | Brazil |
| 14.09 | Day of Physical Culture and Sport in Ukraine | Ukraine |
| 14.09 | Children's Day in Nepal | Nepal |
| 15.09 | Free Money Day | |
| 15.09 | Mother’s Day in Kazakhstan | Kazakhstan |
| 16.09 | Lesbian Visibility Day in Paraguay | Paraguay |
| 17.09 | Adoption Day in Ukraine | Ukraine |
| 18.09 | National HIV/AIDS and Aging Awareness Day | USA |
| 18.09 | National Fitness Day in the UK | United Kingdom |
| 20.09 | National Youth Day in Thailand | Thailand |
| 20.09 | Universal Children’s Day in Germany | Germany |
| 20.09 | Freedom of Speech Day | Venezuela, Peru, Uruguay |
| 20.09 | National Concussion Awareness Day | USA |
| 21.09 | National Volunteer Day in Ghana | Ghana |
| 21.09 | Batman Day | |
| 21.09 | Usher Syndrome Awareness Day | |
| 23.09 | Celebrate Bisexuality Day | |
| 23.09 | National AFM Day | USA |
| 25.09 | National Women’s Health & Fitness Day | USA |
| 26.09 | Dumpling Day | |
| 26.09 | Mesothelioma Awareness Day | |
| 27.09 | National Gay Men’s HIV/AIDS Awareness Day | USA |
| 28.09 | Grandmother's Day in Moldova | Moldova |
| 28.09 | Freedom from Hunger Day | |
| 29.09 | National Blood Donor Day in Kyrgyzstan | Kyrgyzstan |
| 30.09 | Recovery Day in Canada | Canada |
| 30.09 | Orange Shirt Day in Canada | Canada |
| 01.10 | Children's Day in Guatemala and El Salvador | Guatemala, El Salvador |
| 01.10 | Children's Day in Sri Lanka | Sri Lanka |
| 02.10 | Grandparents' Day in Italy | Italy |
| 02.10 | Walk to School Day | |
| 04.10 | Lee National Denim Day | USA |
| 04.10 | Children's Day in Singapore | Singapore |
| 06.10 | Father's Day in Luxembourg | Luxembourg |
| 06.10 | Grandparents' Day in the UK | United Kingdom |
| 06.10 | Grandparents' Day in South Africa | South Africa |
| 06.10 | National Plus Size Appreciation Day | USA |
| 07.10 | Day of Good Treatment in Puerto Rico | Puerto Rico |
| 07.10 | Village and Tribe Day in Iran | Iran |
| 08.10 | Children's Day in Iran | Iran |
| 08.10 | National Pierogi Day | USA |
| 09.10 | National Fire Prevention Day | USA, Canada |
| 11.10 | National Coming Out Day | USA, Australia, Canada, Croatia, Germany, Netherlands, New Zealand, Poland, Switzerland, United Kingdom |
| 11.10 | National Bolivian Women’s Day | Bolivia |
| 12.10 | National Chess Day | USA |
| 13.10 | Grandmothers' Day in Germany | Germany |
| 13.10 | National Herpes Awareness Day | USA |
| 13.10 | Metastatic Breast Cancer Awareness Day | USA, Canada |
| 14.10 | Indigenous Peoples' Day | USA |
| 14.10 | Mother's Day in Belarus | Belarus |
| 15.10 | National Latinx AIDS Awareness Day | American Virgin Islands, Puerto Rico, USA |
| 15.10 | Idic15 Awareness Day in Canada | Canada |
| 16.10 | National Fossil Day in the USA | USA |
| 17.10 | National Edge Day | |
| 17.10 | Purple Thursday | USA, Canada |
| 19.10 | Sweetest Day in the USA | USA |
| 19.10 | National Psoriatic Arthritis Day in Canada | Canada |
| 20.10 | Mother's Day in Argentina | Argentina |
| 20.10 | Vietnamese Women's Day | Vietnam |
| 20.10 | Father’s Day in Russia | Russia |
| 20.10 | Breast Cancer Awareness Day in Ukraine | Ukraine |
| 21.10 | National Dental Hygiene Day in Thailand | Thailand |
| 21.10 | National Pets for Veterans Day | USA |
| 21.10 | Father’s Day in Belarus | Belarus |
| 22.10 | Austrian Sparkling Wine Day | Austria |
| 22.10 | National Scar Appreciation Day | USA |
| 23.10 | Unity Day | USA |
| 23.10 | Universal Children's Day in Australia | Australia |
| 24.10 | Food Day in the USA | USA |
| 24.10 | Brain Cancer Awareness Day in Canada | Canada |
| 26.10 | Children's Day in Malaysia | Malaysia |
| 27.10 | Local Communities Day in Kyrgyzstan | Kyrgyzstan |
| 29.10 | National Cat Day | USA |
| 30.10 | Sugar Addiction Awareness Day | |
| 31.10 | Girl Scouts Founders Day | USA |
| 31.10 | Boy Scouts of the Philippines Founding Anniversary | Philippines |
| 31.10 | National Bug Busting Day in the UK | United Kingdom |
| 01.11 | National Brush Day | USA |
| 02.11 | National Children's Day in South Africa | South Africa |
| 02.11 | Health Day in Turkmenistan | Turkmenistan |
| 03.11 | TransParentDay | |
| 03.11 | Smart Home Day | |
| 04.11 | Students’ Day in Iran | Iran |
| 05.11 | National Love Your Red Hair Day | USA |
| 06.11 | National Healthy Eating Day | USA |
| 07.11 | Students’ Day in Maharashtra | India |
| 07.11 | National Awareness Cancer Day in India | India |
| 07.11 | National Canine Lymphoma Awareness Day | USA |
| 07.11 | National Retinol Day | USA |
| 08.11 | Aliyah Day in Israel | Israel |
| 08.11 | National STEM/STEAM Day | USA |
| 09.11 | Microtia Awareness Day | USA |
| 10.11 | Youth Day in Kyrgyzstan | Kyrgyzstan |
| 10.11 | World Youth Day (WFDY) | |
| 10.11 | National Wheat Day in Brazil | Brazil |
| 11.11 | National Women’s Day in Belgium | Belgium |
| 12.11 | Father's Day in Indonesia | Indonesia |
| 14.11 | Children's Day in India | India |
| 15.11 | National Philanthropy Day | USA |
| 19.11 | National Enteropathic Arthritis Day in Canada | Canada |
| 19.11 | National Grief and Bereavement Day in Canada | Canada |
| 21.11 | Great American Smokeout | USA |
| 21.11 | National Fish Day in Indonesia | Indonesia |
| 21.11 | National Red Mitten Day in Canada | Canada |
| 21.11 | National Rural Health Day | USA |
| 22.11 | National Housing Day in Canada | Canada |
| 22.11 | Good Spouses Day in Japan | Japan |
| 23.11 | National Adoption Day | USA, Puerto Rico |
| 23.11 | Fibonacci Day | |
| 24.11 | Mother's Day in Russia | Russia |
| 24.11 | Grandparents' Day in Singapore | Singapore |
| 24.11 | Evolution Day | |
| 26.11 | Constitution Day in India | India |
| 28.11 | National Family Health History Day | USA |
| 29.11 | National Day of Listening | USA |
| 30.11 | Computer Security Day | |
| 30.11 | Small Business Saturday | USA |
| 30.11 | National Meth Awareness Day | USA |
| 30.11 | National Personal Space Day | USA |
| 02.12 | National Mutt Day | USA |
| 02.12 | Cyber Monday | USA |
| 02.12 | Women’s Brain Health Day in Canada | Canada |
| 05.12 | Children's Day in Suriname | Suriname |
| 05.12 | Volunteer Day in Russia | Russia |
| 07.12 | Student Day in Iran | Iran |
| 07.12 | Small Business Saturday UK | United Kingdom |
| 08.12 | Student's Day in Bulgaria | Bulgaria |
| 08.12 | CARICOM-Cuba Day | Antigua and Barbuda, Bahamas, Barbados, Belize, Haiti, Guyana, Grenada, Dominica, Cuba, Montserrat, Saint Vincent and the Grenadines, Saint Kitts and Nevis, Saint Lucia, Suriname, Trinidad and Tobago, Jamaica |
| 09.12 | Anna’s Day (Lutefisk Day) in Sweden and Finland | Sweden, Finland |
| 10.12 | Suspended Coffee Day | |
| 13.12 | Purple Friday in the Netherlands | Netherlands |
| 17.12 | Anti-Bullying Day in New Brunswick | Canada |
| 22.12 | Mother's Day in Iran | Iran |
| 22.12 | Mother's Day in Indonesia | Indonesia |
| 23.12 | Children’s Day in Sudan | Sudan, South Sudan |
| 24.12 | National Consumer Rights Day in India | India |
| 25.12 | Tulsi Pujan Divas | India |
| 26.12 | Father’s Day in Bulgaria | Bulgaria |