October 21, 2025
Tuesday

October 21st was the 294th day of the year. 51 events are present in the EventGuide database for the day:

Every
Oct 21

National Apple Day

#NationalAppleDay #AppleDay

Every
Oct 21

International Day of the Nacho

#InternationalDayOfTheNacho #DayOfTheNacho

Every
Oct 21

National Pumpkin Cheesecake Day

#NationalPumpkinCheesecakeDay #PumpkinCheesecakeDay

Every
Oct 21

Reptile Awareness Day

#ReptileAwarenessDay #NationalReptileAwarenessDay

3rd Tue
in Oct

National Pharmacy Technician Day

#PharmacyTechnicianDay #RxTechDayMore

Every
Oct 21

Wonder Woman Day

#WonderWomanDay #NationalWonderWomanDay

Every
Oct 21

Global Encryption Day

#GlobalEncryptionDay #EncryptionDayMore

Every
Oct 21

Global Iodine Deficiency Disorder (IDD) Prevention Day

#IDDPreventionDay #GlobalIodineDeficiencyDayMore(4)

Every
Oct 21

World Earthworm Day

#WorldEarthwormDay #WorldWormDayMore

Every
Oct 21

Back to the Future Day

#BackToTheFutureDay #BTTFDayMore

3rd Tue
in Oct

National Share the Warmth Day

#NationalShareTheWarmthDay #ShareTheWarmthDay

Every
Oct 21

World Energy Saving Day

#WorldEnergySavingDay #EnergySavingDayMore(5)

Every
Oct 21

International Day of Photonics

#InternationalDayOfPhotonics #DayOfPhotonicsMore(6)

Every
Oct 21

Heat Pump Day

#HeatPumpDay #NationalHeatPumpDayMore(5)

Every
Oct 21

National Mezcal Day

#NationalMezcalDay #MezcalDay

Every
Oct 21

National Witch Hazel Day

#NationalWitchHazelDay #WitchHazelDay

Every
OCT

International Day of Action on Big Biomass

Every
Oct 21

Babbling Day

#BabblingDay #NationalBabblingDay

Every
Oct 21

Garbanzo Bean Day

#GarbanzoBeanDay #NationalGarbanzoBeanDay

Every
Oct 21

Global Clinical Engineering Day

#GlobalCEDay #GlobalClinicalEngineeringDayMore

Every
Oct 21

Celebration of The Mind Day

#CelebrationOfTheMindDay

Every
Oct 21

National Check Your Meds Day

#NationalCheckYourMedsDay #CheckYourMedsDay

Every
Oct 21

Great British Cheese Day

#GreatBritishCheeseDay

Tue of Wk. 3

National Teen Arrive Alive Day

#TeenArriveAliveDay

Every
Oct 21

World Feminist Radio Day

#FeministRadioDay

Every
Oct 21

National Pets for Veterans Day

#NationalPetsForVeteransDay #PetsForVeteransDayMore

3rd Tue
in Oct

Pro-life Day of Silent Solidarity

#SilentDay #ProLifeDayofSilenceMore(4)

Every
Oct 21

Count Your Buttons Day

#CountYourButtonsDay #NationalCountYourButtonsDay

3rd Tue
in Oct

National Flex Day

#NationalFlexDay #FlexDay

3rd Tue
in Oct

Information Overload Day

#InformationOverloadDay #NationalInformationOverloadD…More

Every
Oct 21

National Honey Day (UK)

#NationalHoneyDay #HoneyDay

After
...

Textiles Tuesday (Canada)

#TextilesTuesday

Every
Oct 21

Pilottwt Selfie Day

#PilottwtSelfieDay #PilotstwtSelfieDay

Every
Oct 21

Pop Rocks Day

#PopRocksDay

Every
Oct 21

GTA Day

#GTADay

Every
Oct 21

National Alexander Day

#NationalAlexanderDay #AlexanderDay

Every
Oct 21

National Jameson Day

#NationalJamesonDay #JamesonDay

Every
Oct 21

National Raymond Day

#NationalRaymondDay #RaymondDay

Every
Oct 21

Uzbek Language Day

#UzbekLanguageDay #NationalUzbekLanguageDay

After
...

National Transfer Student Day

#TransferStudentDay

Every
Oct 21

Abby Cadabby's Birthday

#AbbyCadabbyBirthday

Every
Oct 21

Can-Can Day

#NationalCanCanDay #CanCanDay

Every
Oct 21

Apple Day (UK)

#AppleDay #WorldAppleDay

Every
Oct 21

Trafalgar Day (UK)

#TrafalgarDay #NelsonNavyNation

Every
Oct 21

USS Constitution Birthday

#USSConstitutionDay

Every
Oct 21

World War II Victims Remembrance Day (Serbia)

Every
Oct 21

Everyone Writes Day (UK)

#EveryoneWritesDay

Every
Oct 21

Overseas Chinese Day (Taiwan)

#OverseasChineseDay

Every
Oct 21

National Throw Short People Day

#NationalThrowShortPeopleDay #ThrowShortPeopleDay

Every
Oct 21

National Archives Day (Philippines)

#NationalArchivesDay #ArchivesDay

Every
Oct 21

International Fisting Day

#InternationalFistingDay #FistingDayMore(4)

Next year, October 21st falls on a Wednesday. Last year, it fell on a Monday.

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