Holidays and celebrations in Slovenia in 2021
January
February
March
- World Immunity Day
- World compliment day
- Self Harm Awareness Day
- Zero Discrimination Day
- International Rescue Cat Day
- World Teen Mental Wellness Day
- Day of Fyodor Tiron and Maremyana Kikimora
- Match day
- World Hearing Day
- World Day of the writer
- International Irish Whiskey Day
- World Wildlife Day
- International HPV Awareness Day
- World Engineering Day for Sustainable Development
- World Obesity Day
- International Day for Awareness on Disarmament and Non-Proliferation
- World Glaucoma Day
- European Day of the Righteous
- World DJ Day
- International Bagpipe Day
- International Wig Day
- International Day of Women Judges
- Dietitian's Day
- Mario Day
- International Day of Awesomeness
- World Plumbing Day
- World Day of Muslim Culture, Peace, Dialogue and Cinema
- World day against cyber censorship
- World Glaucoma Day
- World Day Against Cyber Censorship
- International Riesling Day
- Intrauterine Growth Restriction Awareness Day
- International Mathematics Day
- Day of Action for Rivers, Water and Life
- Steak and Blowjob Day
- Pi Day
- World contact day
- Earth Day
- UN French Language Day
- International Day of Happiness
- International Day of Forests
- World Down Syndrome Day
- International Day for the Elimination of Racial Discrimination
- World Poetry Day
- Baltic Sea Day
- World Water Day
- World Meteorological Day
- World Tuberculosis Day
- Mother's Day
- International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade
- World Theatre Day
- World Backup Day
April
- April Fools' Day
- Birthday instant coffee
- International day of fun at work
- World Autism Awareness Day
- Reconciliation Day
- International Children's Book Day
- International Fact-Checking Day
- World Party Day
- World Aquatic Animal Day
- Barcode birthday
- Mobile phone birthday
- International Carrot Day
- World Health Day
- International Safety Pin Day
- Submarine Day
- World Festival of Oatmeal
- World amateur radio day
- International Day For Monuments and Sites
- Volunteer Recognition Day
- World day of orphans
- UN Chinese Language Day
- World Curlew Day
- International Cannabis Day
- World Creativity and Innovation Day
- International Mother Earth Day
- Earth Day
- World Book Day
- World Book Day
- UN English Language Day
- UN Spanish Language Day
- World Day for Laboratory Animals
- Fashion Revolution Day
- World Malaria Day
- Feast of Saint Mark
- International Chernobyl Disaster Remembrance Day
- World Intellectual Property Day
- Workers’ Memorial Day
- International Jazz Day
May
- Labour Day
- Global Love Day
- Scurvy Awareness Day
- World Tuna Day
- Sun Day
- African World Heritage Day
- World Pulmonary Hypertension Day
- World Hand Hygiene Day
- International No Diet Day
- World AIDS Orphans Day
- World Red Cross and Red Crescent Day
- International Fans Day
- White Lotus Day
- Iris Day
- Europe Day
- International Nurses Day
- International Day of Families
- The International Conscientious Objectors' Day
- International Day Against Homophobia, Biphobia and Transphobia
- World Telecommunication and Information Society Day
- International Museum Day
- World Bee Day
- World Metrology Day
- World Traumatologist Day
- International Day for Biological Diversity
- World Goth Day
- World Turtle Day
- World Video Game Day
- International Youth Day
- Towel Day
- Geek Pride Day
- Brunettes day
- International Day of United Nations Peacekeepers
- National Siblings Day
- World No Tobacco Day
June
- Children's Day
- World Milk Day
- International Day of Doubt
- Day of determination
- International Sex Workers’ Day
- Day of the railway worker
- Bicycle day
- World Day Against Speciesism
- World Environment Day
- Day of the Russian Language
- World Food Safety Day
- World Tourette Syndrome Awareness Day
- World Oceans Day
- World Brain Tumor Day
- Primož Trubar Day
- International day of the housewife
- International Day of Archives
- World Art Nouveau Day
- World Craft Day
- World Prostate Cancer Day
- International day of indomitable passion
- World Day Against Child Labour
- World Knitting Day
- World Blood Donor Day
- Global Wind Day
- World Elder Abuse Awareness Day
- International Day of Family Remittances
- International Biotechnology Day
- International Day of Solidarity with the Struggling Peoples of South Africa
- World Crocodile Day
- World Garbage Man Day
- World Day to Combat Desertification and Drought
- Autistic Pride Day
- World Sickle Cell Day
- International Day for the Elimination of Sexual Violence in Conflict
- World Sauntering Day
- World refugee day
- World Humanist Day
- International Day of Yoga
- Go Skateboarding Day
- United Nations Public Service Day
- Olympic Day Run
- International Women in Engineering Day
- International Dravet Syndrome Awareness Day
- Swastika Rehabilitation Day
- World UFO Day
- World Bullfighting Day
- World Refrigeration Day
- International Day Against Drug Abuse and Illicit Trafficking
- International Day of the Deafblind
- Tau Day
- International Body Piercing Day
- International Scoliosis Day
- World Social Media Day
- International Day of Parliamentarism
- Asteroid Day
July
- International Joke Day
- World UFO Day
- Plastic Bag Free Day
- Cannes Film Festival
- World Fried Chicken Day
- World Cardiologist Day
- National Kissing Day
- World Chocolate Day
- World Population Day
- World Rock Day
- International Conductor's Day
- International Non-Binary People's Day
- World Youth Skills Day
- World Emoji Day
- Nelson Mandela International Day
- International Chess Day
- International Cake Day
- World Brain Day
- International Homework Day
- Pi Approximation Day
- International Strange Music Day
- World Drowning Prevention Day
- Esperanto Day
- World Day against Trafficking in Persons
- Friend's day
- African Women's Day
August
- World Scout Scarf Day
- World Day of Joy
- Roma Holocaust Memorial Day
- Roma Holocaust Memorial Day
- International Day "Physicians of the World for Peace"
- International Cat Day
- International Mountaineering Day
- Happiness Happens Day
- World Elephant Day
- Sea Org Day
- International left-hander day
- Assumption of Mary
- World Rum Day
- World Humanitarian Day
- World Photography Day
- World Day of Laziness
- European Day of Remembrance for Victims of Stalinism and Nazism
- International Day for the Remembrance of the Slave Trade and its Abolition
- Chips birthday
- International Day against Nuclear Tests
- International Whale Shark Day
- International Day of the Disappeared
September
- World Day of Peace
- World Letter Writing Day
- World Skyscraper Day
- Opening New Doors Day
- International Day of Charity
- World War Toy Destruction Day
- International Day of Clean Air for blue skies
- International Literacy Day
- Software Tester Day
- International Day of Gynecological Health
- World Suicide Prevention Day
- United Nations Day for South-South Cooperation
- Mindfulness Day
- World Chocolate Day
- World Sepsis Day
- Tank Forces Day
- World Lymphoma Awareness Day
- International Free Money Day
- Restoration of Primorska to the Motherland Day
- Birthday of the environmental organization Greenpeace
- International Day for the Preservation of the Ozone Layer
- World Patient Safety Day
- World Water Monitoring Day
- World Day of Remembrance for Dead Motorcyclists
- The birthday of the "Smiley"
- International Talk Like a Pirate Day
- World Gratitude Day
- Zero Emissions Day
- International Day of Peace
- Car-free days
- World Rhino Day
- Celebrate Bisexuality Day
- International Day of Sign Languages
- International Day of caravan
- System Analyst Day
- World Dream Day
- European Day of Languages
- World Contraception Day
- World Tourism Day
- Google birthday
- World Rabies Day
- International Day for Universal Access to Information
- International Safe Abortion Day
- International Poke Day
- World Heart Day
- Day of autumn loneliness
- International Translation Day
- Blasphemy Day
October
- World Vegetarian Day
- International Day of Older Persons
- International Coffee Day
- International Music Day
- International Day of Non-Violence
- International Day of the Social Educator
- World Game Day
- World Day of Sobriety and the Fight against Alcoholism
- World Animal Day
- World Space Week
- International Day of No Prostitution
- World Space Week
- World Habitats Day
- World Space Week
- World cotton day
- World Space Week
- World Space Week
- World Post Day
- World Space Week
- World Mental Health Day
- World Space Week
- International Day of the Girl Child
- Diver's Day
- International Day for Disaster Risk Reduction
- International Suit Up Day
- World Standards Day
- International Rural Women's Day
- Breast Health Day
- World Food Day
- International Day for the Eradication of Poverty
- World Osteoporosis Day
- World Statistics Day
- International Air Traffic Controller Day
- International Stuttering Awareness Day
- Fechner Day
- iPod Day
- United Nations Day
- World Development Information Day
- International Day of Diplomats
- International Animation Day
- World Stroke Day is observed on October 29 to underscore the serious nature and high rates of stroke, raise awareness of the prevention and treatment of the condition, and ensure better care and support for survivors.[1] On this day, organizations around the world have facilitated events emphasizing education, testing, and initiatives to improve the damaging effects of stroke worldwide.
- Halloween
November
- All Saints' Day
- World Vegan Day
- International Day to End Impunity for Crimes Against Journalists
- International Inuit Day
- World Urbanism Day
- International Accounting Day
- St. Martin's Day
- World Kindness Day
- World Diabetes Day
- International Student's Day
- International Men's Day
- World Toilet Day
- Children's Day
- Son's day
- Computer Security Day
December
- World AIDS Day
- International Day for the Abolition of Slavery
- United Nations' International Day of Persons with Disabilities
- National Hugging Day
- International Volunteer Day
- International Volunteer Day for Economic and Social Development
- International Civil Aviation Day
- International Day of Democracy
- Monkey Day
- Zamenhof Day
- International Day to End Violence Against Sex Workers
- UN Arabic Language Day
- International Human Solidarity Day
- Christmas eve
- Saint Stephen's Day
- Day of the Innocents
- Saint Sylvester's Day