Holidays and Observances
Alphabetical Listing of I Holidays

Below, you can find a Holidays and Observances Alphabetical Listing of US Holidays and World Holidays and Observances that start with I.  We are still adding names to the list, so more information will be coming. 

After we complete the summary pages on the site, we will start working on a detailed page(s) for each Holidays and Observance. Once a page is completed for each Holiday or Observance, it will be linked up below, as well as it's related Daily Holidays page. (that should keep us busy for the next 20 years or so!!)

Search for Holidays Alphabetically:

A, B, C, D, E, F, G, H, I, J, K, L, M, N, N-Pg2 O, P, Q, R, S, T, U, V, W, X-Y-Z


I

  • I Am a Mentor Day - January 4, 2019
  • I Forgot Day - July 2
  • I Love Horses Day - July 15
  • I Love Lucy Day - October 15
  • I Love Reese's Day - May 18
  • I Love to Write Day - November 15
  • I Love Yarn Day - October 13, 2018 (Second Saturday in October)
  • I Want You to be Happy Day - March 3
  • IBM PC Day - August 12
  • Ice Cream and Violins Day - December 13
  • Ice Cream for Breakfast Day - February 2, 2019 (First Saturday in February)
  • Idaho Human Rights Day - January 21, 2019 (State Holiday in Idaho on the Third Monday in January)
  • Ides of March - March 15
  • Iditarod Race - Starts March 3, 2018 (First Saturday in March)
  • IEEE Global Engineering the Future Day - May 13
  • If Pets had Thumbs Day - March 3
  • Imbolic - February 2 (Pagan)
  • Impossible Astronaut Day - April 23
  • Improve Your Office Day - October 4
  • I'm Not Going to Take It Anymore Day - January 7
  • In God We Trust Day - April 22
  • Inauguration Day - January 20 (State Holiday - DC, LA, MO, VA)
  • Income Tax Pay Day - April 17, 2018
  • Inconvenience Yourself Day - February 27, 2019 (Fourth Wednesday in February)
  • Incredible Kid Day - March 15, 2018
  • Independence Day (Fourth of July) - July 4
  • Independence From Meat Day - July 4
  • Independent Bookstore Day - April 28, 2018 (Last Saturday in April)
  • India Pale Ale Beer Day - August 2, 2018 (First Thursday in August)
  • Indiana Flower and Patio Show - March 10-18, 2018
  • Indianapolis 500 - May 27, 2018 (Sunday of Memorial Day Weekend)
  • Indivisible Day - July 4
  • Industrial Workers of the World  Day - June 27
  • Infants Immunization Week - Fourth Week of April
  • Infection Control Week - Third Week of October
  • Information Overload Day - October 17, 2018 (Third Wednesday in October)
  • Informed Woman Month - Entire Month of April
  • Ingersoll Day - August 11
  • Innergize Day - September 23, 2018 (Day after the Autumn Equinox which falls on September 22, 2018)
  • Innovation Day - February 16
  • Inspire Your Heart with Art Day - January 31
  • Insurance Awareness Day - June 28
  • Inter-American Water Day - October 6, 2018 (First Saturday in October)
  • Intergalactic Star Wars Day - May 4
  • Intergeneration Day - October 7, 2018 (First Sunday in October)
  • Intergeneration Month - Entire Month of September
  • International Accounting Day - November 10
  • International African Diaspora Day - October 7, 2018 (First Sunday in October)
  • International African Penguin Awareness Day - October 13
  • International Air Ambulance Week - September 8-16, 2018
  • International Alopecia Month For Women - Entire Month of July
  • International Amateur Radio Day - April 18
  • International Amateur Radio Month - Entire Month of April
  • International Angelman Day - February 15
  • International Animal Rights Day - December 10, 2018
  • International Answer the Telephone Like Buddy the Elf Day - December 18
  • International Anti-Corruption Day - December 9
  • International Artists Day - October 25
  • International Ask a Question Day - March 14
  • International Assistance Dog Week - August 5-11, 2018 (Starts on First Sunday in August)
  • International Astrology Day - March 20, 2018 (usually either March 20 or March 21 - falls on the same day as the Northward Equinox -(Spring equinox in the Northern hemisphere, Fall equinox in the Southern hemisphere).
  • International Augmentative & Alternative Communication (AAC) - Entire Month of October
  • International Aura Awareness Day - November 24, 2018 (Fourth Saturday in November)
  • International Baby Lost Mother's Day - May 6, 2018 (First Sunday in May)
  • International Bacon Day - September 1, 2018 (Saturday before Labor Day which falls on September 3, 2018)
  • International Bagpipe Day - March 10
  • International Banana Festival - September 21
  • International Bandanna Day - October 26, 2018 (Last Friday in October)
  • International Bat Appreciation Day - April 17
  • International Bat Night(s) - August 25-26, 2018 (Last Full Weekend in August)
  • International Beaver Day - April 7
  • International Beer and Pizza Day - October 9
  • International Beer Day - August 3, 2018 (First Friday in August)
  • International Bereaved Mothers Day - May 6, 2018 (First Sunday in May)
  • International Biodiesel Day - August 10
  • International Blessings of the Fishing Fleet Day - October 7, 2018 (First Sunday in October)
  • International Blondie and Deborah Harry Month - Entire Month of July
  • International Body Piercing Day - June 28
  • International Book Giving Day - February 14
  • International Boost Self Esteem Month - Entire Month of February
  • International Brain Awareness Week - March 12-18, 2018
  • International Brain Teaser Month - Entire Month of January
  • International Building Safety Week - May 6-12, 2018 (First Full Week in May)
  • International Business Image Improvement Month - Entire Month of May
  • International Buy a Priest a Beer Day - September 9
  • International Cachaca Day - June 12
  • International Cake Day - July 20
  • International Cat Day - August 8
  • International Celebrate Bi Sexuality Day - September 23
  • International Change Your Stars Month - Entire Month of January
  • International Cheetah Day - December 4
  • International Chernobyl Disaster Remembrance Day - April 26
  • International Cherry Pit Spitting Day - July 7, 2018 (First Saturday in July)
  • International Chicken Wing Day - July 29
  • International Child-Centered Divorce Awareness Month - Entire Month of January
  • International Child Helpline Day - May 17
  • International Childfree Day - August 1
  • International Childhood Cancer Awareness Day - February 15
  • International Childhood Cancer Awareness Month - Entire Month of June
  • International Children's Book Day - April 2
  • International Chocolate Day - September 13
  • International Circus Festival of Monte Carlo - January 17-27, 2019 (Monaco)
  • International Civil Aviation Day - December 7
  • International Civility Awareness Month - Entire Month of May
  • International Clean Hands Week - September 16-22, 2018 (Third Full Week of September)
  • International Clients Day - March 19
  • International Clinical Trials Day - May 20
  • International Clitoris Awareness Week - May 6-12, 2018 (First Full Week in May)
  • International Clothesline Week - June 2-9, 2018 (starts on the first Saturday in June
  • International Clown Week - August 1-7
  • International Coaching Week - May 7-13, 2018
  • International Coastal Cleanup Day - September 15, 2018 (Third Saturday)
  • International Coelenterate Biology Week - December 4-8
  • International Coffee Day - September 29
  • International Color Day - March 21
  • International Computer Security Day - November 30
  • International Condom Day - February 13
  • International Conscientious Objector Day - May 15
  • International COPD Awareness Month - Entire Month of November
  • International Country Music Day - September 17
  • International Creativity and Innovation Day - April 13
  • International Creativity Month - Entire Month of January
  • International Credit Union Day - October 18, 2018 (Third Thursday in October)
  • International Customer Loyalty Month - Entire Month of April
  • International Customs Day - January 26
  • International Dalek Remembrance Day - December 21
  • International Dance Day - April 29
  • International Dark Sky Week - April 22-28, 2018
  • International Day Against DRM - May 3, 2018
  • International Day Against Drug Abuse & Illicit Trafficking - June 26
  • International Day Against Homophobia and Transphobia - May 17
  • International Day Against Nuclear Tests - August 29
  • International Day Against Police Brutality - March 15
  • International Day for Biological Diversity - May 22
  • International Day for Disaster Reduction - October 13
  • International Day for Failure - October 13
  • International Day for Mine Awareness and Assistance in Mine Action - April 4
  • International Day for Monuments and Sites - April 18
  • International Day for Natural Disaster Reduction - October 10
  • International Day for Preventing the Exploitation of the Environment in War and Armed Conflict - November 6
  • International Day for the Abolition of Slavery - December 2
  • International Day for the Elimination of Racial Discrimination - March 21
  • International Day for the Elimination of Violence Against Women - November 25
  • International Day for the Eradication of Poverty - October 17
  • International Day for the Preservation of the Ozone Layer - September 16
  • International Day for the Remembrance of the Slave Trade & its Abolition - August 23
  • International Day for the Right to the Truth Concerning Gross Human Rights Violations and for the Dignity of Victims - March 24
  • International Day for Tolerance - November 16
  • International Day of Action for Elephants in Zoos - June 8
  • International Day of Black Women in the Arts - February 7
  • International Day of Charity - September 5
  • International Day of Commemoration in Memory of the Victims of the Holocaust - January 27
  • International Day of Cooperatives - July 7, 2018 (First Saturday in July)
  • International Day of Democracy - September 15
  • International Day of Families - May 15
  • International Day of Forests and the Tree - March 21
  • International Day of Friendship - July 30
  • International Day of Happiness - March 20
  • International Day of Human Space flight - April 12
  • International Day of Innocent Children Victims of Aggression - June 4
  • International Day of Listening - September 20, 2018 
  • International Day of No Prostitution - October 5
  • International Day of Non-Violence - October 2
  • International Day of Nowruz - March 21
  • International Day of Older Persons - October 1
  • International Day of Peace - September 21
  • International Day of Persons with Disabilities - December 3
  • International Day of Prayer for the Persecuted Church - November 11, 2018 (Usually Second Sunday in November)
  • International Day of Radiant Peace - September 22
  • International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade - March 25
  • International Day of Rural Women - October 15
  • International Day of Sign Language - September 23
  • International Day of Solidarity with Detained and Missing Staff Members - March 25
  • International Day of Solidarity with the Palestinian People - November 29
  • International Day of Sport for Development and Peace - April 6
  • International Day of the African Child - June 16
  • International Day of the Deaf - September 30, 2018 (Last Sunday in September)
  • International Day of the Girl Child - October 11
  • International Day of the Seal - March 22
  • International Day of the Unborn Child - March 25
  • International Day of the Victims of Enforced Disappearances - August 30
  • International Day of the World's Indigenous People - August 9
  • International Day of United Nations Peacekeepers - May 29
  • International Day of Women & Girls in Science - February 11, 2019
  • International Day of Zero Tolerance to Female Genital Mutilation - February 6
  • International Day to End Impunity for Crimes Against Journalists - November 2
  • International Day to End Obstetric Fistula - May 23
  • International Deaf Awareness Week - September 24-30, 2018 (Last Whole Week in September from Sunday - Saturday)
  • International DIS Awareness Month - Entire Month of December
  • International Dog Biscuit Appreciation Day - February 23
  • International Dot Day - September 15
  • International Drive Your Studebaker Day - September 8, 2018 (Second Saturday in September)
  • International Drum (Percussion) Month - Entire Month of November
  • International Dyslexia Association Reading Week - October 15-19, 2018
  • International Dyslexia Reading, Literacy Week - October 24-27, 2018
  • International Ear Care Day - March 3
  • International Earth Day - March 20, 2018 (Same Day as Spring Equinox)
  • International Eat an Apple Day - September 15, 2018 (Third Saturday in September)
  • International Enthusiasm Week - September 1-7
  • International Expect Success Month - Entire Month of February
  • International Face & Body Art Day - February 1
  • International Fairy Day - June 24
  • International Fanny Pack Day - March 10, 2018 (Second Saturday in March)
  • International Festival of Owls - March 2-4, 2018
  • International Fetish Day - January 18, 2019 (Third Friday in January)
  • International Firefighter's Day - May 4
  • International Flirting Week - February 10-16, 2019 (Week of Valentines Day)
  • International Francophonie Day - March 20
  • International Fraud Awareness Week - November 18-24, 2018 (Third Week in November)
  • International Friendship Month - Entire Month of February
  • International Friendship Week - February 10-16, 2019
  • International Fun at Work Day - April 5, 2018 (April 1st, unless it falls on weekend, then the first Thursday in April)
  • International Games Day - November 17, 2018 (Third Saturday in November)
  • International Geocaching Day - August 18, 2018 (Third Saturday of August)
  • International Girls Day - November 14
  • International Girls in Information and Telecommunication Technologies Day - April 26, 2018 (Fourth Thursday in April)
  • International Grenache Day - September 21, 2018 (Third Friday in September)
  • International Group B Strep Awareness Month - Entire Month of July
  • International Guide Dog Day - April 25, 2018 (Last Wednesday in April)
  • International Guitar Month - Entire Month of April
  • International Hangover Day - August 4, 2018 (Day after International Beer Day)
  • International Heritage Breeds Day - May 26 (Saturday of Third Full Week)
  • International Homeless Animals Day -  August 18, 2018 (Third Saturday of August)
  • International Hoof Care Month - Entire Month of February
  • International Hoof Care Week - January 22-25, 2019
  • International Hot & Spicy Food Day - January 16
  • International Housekeepers Week - September 9-15, 2018 (Second Full Week of September)
  • International Hug Your Cat Day - May 30
  • International Human Solidarity Day - December 20
  • International Hummus Day - May 13
  • International Ideas Month - Entire Month of March
  • International Infection Prevention Week - October 14-20, 2018
  • International Internal Audit Awareness Month - Entire Month of May
  • International Internet Day - October 29
  • International Interpreters and Translators Week - September 23-29, 2018 (Last Full Week in September
  • International Jazz Day - April 30 as well as May 26, 2018 (Saturday of Memorial Day Weekend)
  • International Juggler's Day - April 18
  • International Kangaroo Care Awareness Day - May 15
  • International Kissing Day or World Kiss Day - July 6
  • International Kite Day - January 14
  • International Lace Day - September 29, 2018 (Last Saturday in September)
  • International Language Week - Third Week of December
  • International Lefthander's Day - August 13
  • International Listening Week - June 7-10, 2017 (2018 TBA)
  • International Listening Weekend - June 20-23, 2018
  • International Listening Awareness Month - Entire Month of March
  • International Literacy Day - September 8
  • International "Louie Louie" Day - April 11
  • International Magic Week - October 25-31
  • International Marconi Day - April 23
  • International Mariachi Week - April 25-31, 2018
  • International Mathematicians Week - August 1-9
  • International Men's Day - November 19
  • International Men's Makeup Day - November 1
  • International Men's Month - Entire Month of June
  • International Mentoring Day - January 17, 2019
  • International Midwives Day - May 5
  • International Migrants Day - December 18
  • International Migratory Bird Day - May 12, 2018 (Second Saturday in May)
  • International Mirth Month - Entire Month of March
  • International Mobile Phone Recycling Day - January 24
  • International Moment of Frustration Scream Day - October 12
  • International Moment of Laughter Day - April 14
  • International Mother Earth Day - April 22
  • International Mother Language Day - February 21
  • International Mountain Day - December 11
  • International MPS Awareness Day - May 15
  • International Museum Day - May 18
  • International Music Day - October 1
  • International Myalgic Encephalomyelitis / Chronic Fatigue Syndome Awareness Day - May 12
  • International Networking Week - February 4-8, 2019
  • International New Year's Resolution Month for Business - Entire Month of January
  • International Newspaper Carrier Day - October 10
  • International No Diet Day - May 6
  • International Nude Day - July 14
  • International Nurses Day - May 12
  • International Overdose Awareness Day - August 31
  • International Pancake Day - February 13, 2018 (2019 TBD)
  • International Panic Day - June 18
  • International People Skills Month - Entire Month of September
  • International Petroleum Week - February 26-28, 2019
  • International Phace Syndrome Awareness Week - March 25-31, 2018 (Last Week of March)
  • International Pickle Day- May 16
  • International Pickles Week - Third Week in May
  • International Picnic Day - June 18
  • International Pillow Fight Day - April 7, 2018 (First Saturday in April)
  • International Pixel-Stained Technopeasant Day - April 23
  • International Plastic Bag Free Day - July 3
  • International Polar Bear Day - February 27
  • International Pooper Scooper Week - April 1-7
  • International Post Card Week - October 7-13, 2018 (First Full Week of October)
  • International Prenatal Infection Prevention Month - Entire Month of February
  • International Print Day - October 17, 2018 (Third Wednesday)
  • International Printing Week - Third Week of January
  • International Programmer's Day - January 7 and also on September 13
  • International Quality of Life Month - Entire Month of January
  • International Rabbit Day - September 22, 2018 (Fourth Saturday or Sunday in September)
  • International Raccoon Appreciation Day - October 1
  • International Red Panda Day - September 15, 2018 (Third Saturday in September)
  • International Respect for Chickens Day - May 4
  • International Respect for Chickens Month - Entire Month of May
  • International Restorative Justice Week - November 18-24, 2018 (Third Week of November)
  • International Right to Know Day - September 28
  • International Romani Day - April 8
  • International Safety Pin Day - April 10
  • International Sandsculpting Championship - September 28 - October 7, 2018 (Virginia Beach)
  • International Sculpture Day - April 28, 2018 (Last Saturday in April)
  • International Self-Awareness Month - September 1
  • International Self Care Day - July 24, 2018
  • International Sex Workers Day - June 2
  • International Shareware Day - December 8, 2018 (Second Saturday in December)
  • International Sister Cities Day - July 13-15, 2017 (2018 = TBA)
  • International Sloth Day - October 20
  • International Snailpapers Day - April 7
  • International Snowmobile Safety and Awareness Week - January 19-27, 2019
  • International Space Day - May 4, 2018 (First Friday in May)
  • International Speak Out Month - Entire Month of September
  • International Special Librarian's Day - April 13
  • International Sports Car Racing Day - March 17, 2018 (Third Saturday in March)
  • International Square Dancing Month - Entire Month of September
  • International Stage Management Day - October 10
  • International Starman Month - Entire Month of October
  • International Stout Day - November 1, 2018 (First Thursday in November)
  • International Strange Music Day - August 24
  • International Strategic Planning Month - Entire Month of October
  • International Strategic Thinking Month - Entire Month of September
  • International Stress Awareness Day - November 7, 2018 (First Wednesday in November)
  • International Stuttering Awareness Day - October 22
  • International Sunflower Guerilla Gardening Day - May 1
  • International Surf Music Month - Entire Month of June
  • International Surfing Day - June 20
  • International Survivors of Suicide Day - November 23
  • International Sushi Day - June 18
  • International Sword Swallowers Day - February 23, 2019 (Last Saturday in February)
  • International Table Top Day - April 28, 2018
  • International Tatting Day - April 1
  • International Tea Day - December 15
  • International Tempranillo Day - November 8, 2018 (Second Thursday in November)
  • International Thank-You Day - January 11
  • International Tiger Day - July 29
  • International Tongue Twister Day - November 8
  • International Top Spinning Day - October 10, 2018 (Second Wednesday in October)
  • International Town Criers Day - July 9, 2018 (Second Monday in July)
  • International Transgender Day of Visibility - March 31
  • International Translation Day - September 30
  • International Tree Climbing Week - August 3-5, 2018
  • International Turtle Day - May 23
  • International Twit Award Month - Entire Month of April
  • International Typing Day - October 8
  • International Underlings Day - February 29 (Every 4 Years - 2016, 2020, 2024 etc)
  • International Victorious Woman Month - Entire Month of May
  • International Virtual Assistants Day - May 18, 2018 (Third Friday in May)
  • International Volunteer Day for Economic and Social Development - December 5
  • International Volunteers Day - December 5
  • International Waffle Day - March 25
  • International Walk to School Day - October 10, 2018
  • International Walk to School Month - Entire Month of October
  • International Wayfinding Month - Entire Month of January
  • International Wealth Mentality Month - Entire Month of January
  • International Week of Black Women In the Arts - February 7-15
  • International Week of Prayer for Christian Unity - January 18-25
  • International Week of Science and Peace - November 9-14, 2018 (The Week in Which November 11 Falls)
  • International Week of the Deaf - September 24-30, 2018 (Last Week that includes Last Sunday of September)
  • International Whale Shark Day - August 30
  • International Whisk(e)y Day - August 31
  • International Widow's Day - June 23
  • International Wildlife Film Week - April 14-22, 2018
  • International Women of Color Day - March 1
  • International Women with Alopecia Month - Entire Month of July
  • International Women's Day - March 8
  • International Women's Day for Peace and Disarmament - May 24
  • International Women's E-Commerce Days - September 24-29, 2018
  • International Women's Friendship Month - Entire Month of September
  • International Workers Day - May 1
  • International Working Women's Day - March 8
  • International Year of Artisanal Fisheries and Aquaculture - Annual United Nations Observance Year 2022 (A/Res/72/72)
  • International Year of Camelids - Annual United Nations Observance Year 2024 (A/Res/72/210)
  • International Year of Cooperatives - Annual United Nations Observance Year 2012
  • International Year of Crystallography - Annual United Nations Observance Year 2014
  • International Year of Family Farming - Annual United Nations Observance Year 2014
  • International Year of Indigenous Languages - Annual United Nations Observance Year 2019
  • International Year of Light and Light-based Technologies - Annual United Nations Observance Year 2015
  • International Year of Moderation - Annual United Nations Observance Year 2019 (A/Res/72/129)
  • International Year of Pulses - Annual United Nations Observance Year 2016
  • International Year of Quinoa - Annual United Nations Observance Year 2013
  • International Year of Small Island Developing States - Annual United Nations Observance Year 2014
  • International Year of Soils - Annual United Nations Observance Year 2015
  • International Year of Solidarity with the Palestinian People - Annual United Nations Observance Year 2014
  • International Year of Sustainable Energy for All - Annual United Nations Observance Year 2012
  • International Year of Sustainable Tourism for Development - Annual United Nations Observance Year 2017
  • International Year of the Periodic Table of Chemical Elements - Annual United Nationals Observance Year 2019 (A/Res/72/228)
  • International Year of Water Cooperation - Annual United Nations Observance Year 2013
  • International Yoga Day - June 21
  • International Youth Day - August 12
  • International Young Eagles Day - June 9, 2018 (Second Saturday of June)
  • International Zine Month - Entire Month of July
  • Intersex Awareness Day - October 26, 2018
  • Intersex Day of Remembrance - November 8, 2018
  • Interstate Mullet Toss - April 27-29, 2018 (Last Full Weekend in April)
  • Introduce a Girl to Engineering Day - February 21, 2019 (Thursday of Engineering Week)
  • Inventors Day - September 29
  • Invictus Games - October 20-27, 2018
  • IPod Day - October 23
  • Iris Day - May 8
  • Irish-American Heritage Month - Entire Month of March
  • Irritable Bowel Syndrome (IBS) Awareness Month - Entire Month of April
  • Islamic New Year - Evening of September 11, 2018 to Evening of September 12, 2018
  • Isra and Mi'raj - April 13, 2018 (Muslim Holiday)
  • Italian-American Heritage Month - Entire Month of October
  • It's About Time Week - December 25-31
  • IUGR Awareness Day - March 13 (IUGR = Intrauterine Growth Restriction)
  • Iwo Jima Day - February 19

Search for Holidays Alphabetically:

A, B, C, D, E, F, G, H, I, J, K, L, M, N, N-Pg2 O, P, Q, R, S, T, U, V, W, X-Y-Z


Solo Build It!

Solo Build It, or SBI, is the awesome E-Business software that we are using for this site!








Like this Page?





Follow Us!


Share This Page



Holidays and Observances Holiday Calendar

Holiday Calendar

NEW! Link to Our Calendar from YOUR site!



Holidays are Great for Traveling...Find the Best Hotel Price!

Finding the right hotel just got a whole lot easier - HotelsCombined.com

2016 Winner of:

World's Leading Hotel Comparison Website!


Site Sponsors
(Please check out OUR other Sites!!)

Kerry's Site - Healthy Diet Habits:


Leigh's site - Truckee Travel Guide - a tourism site about the Ski Town of Truckee and Lake Tahoe.

Brie from Massage By Brie in Midtown, Sacramento

 Massage By Brie - Sacramento, CA

(Leigh's Daughter Brie)


Greeting Cards

Everyone still LOVES to get Greeting Cards with a Handwritten Note!


Search for Holidays By Month

Solo Build It!

SBI, or Solo Build It, is the E-Business software that we are using for this site!