May 18, 2026
Monday

This day is the 138th day of the year. There are 227 days remaining in the year. The EventGuide database currently contains 34 events on this day:

Every
May 18

I Love Reese's Day

#ILoveReesesDay #NationalILoveReesesDay

Every
May 18

International Museum Day

#InternationalMuseumDay #MuseumDay …More(6)

Every
May 18

No Dirty Dishes Day

#NoDirtyDishesDay #NationalNoDirtyDishesDay

Every
May 18

National Speech Pathologist Day

#NationalSpeechPathologistDay #SpeechPathologistDay …More(5)

Every
May 18

National Cheese Souffle Day

#NationalCheeseSouffleDay #CheeseSouffleDay

Every
May 18

International Day for Women in Maritime

#WomenInMaritimeDay #InternationalDayForWomenInMa…

Every
May 18

HIV Vaccine Awareness Day

#HIVVaccineAwarenessDay #AIDSVaccineAwarenessDay …More(4)

Every
May 18

World Homocystinurias Awareness Day

#WHAD2026 #WorldHCUDay

Every
May 18

World Therapeutic Horticulture Day

#WorldTherapeuticHorticulture… #TherapeuticHorticultureDay

Every
May 18

World Eosinophilic Diseases Day

#WorldEosinophilicDiseasesDay #WorldEosDay

Every
May 18

International Fascination of Plants Day

#InternationalFascinationOfPl… #FascinationOfPlantsDay …More(4)

Every
May 18

National Bento Day

#NationalBentoDay #BentoDay

Every
May 18

National AAPI Day Against Bullying

#AAPIDayAgainstBullying

Every
May 18

Visit Your Relatives Day

#VisitYourRelativesDay #NationalVisitYourRelativesDay

3rd Mon
in May

Supply Chain Professionals Day

#SupplyChainProfessionalsDay #NationalSupplyChainProfessio…

Every
May 18

National Kids Ignite Good! Day

#NationalKidsIgniteGoodDay #KidsIgniteGoodDay

Mon of Wk. 3

EMS Education Day

#EMSEducationDay

Every
May 18

National Brock Day

#NationalBrockDay #BrockDay

Every
May 18

National Haitian Soul Snatching Day

Every
May 18

National CASA/GAL Volunteer's Day

#CASAVolunteersDay

Every
May 18

National Marvin Day

#NationalMarvinDay #MarvinDay

Every
May 18

World Lipedema Day

Before
...

Victoria Day (Canada)

#VictoriaDay #MayTwoFour

Every
May 18

World Hollandia Dairy Day (Nigeria)

#HollandiaDairyDay #HDD2026

Every
May 18

Mount Saint Helens Day

#MountStHelensDay

Every
May 18

Children's International Goodwill Day

Every
May 18

eCard Day

#eCardDay #NationalECardDay

Every
May 18

Mother Whistler Day

#MotherWhistlerDay

Every
May 18

Haitian Flag Day

#HaitianFlagDay #HappyHaitianFlagday …More

Every
May 18

National Marshmallow Day (Australia)

#NationalMarshmallowDay #MarshmallowDay

Every
May 18

National Cocktail Day (Portugal)

#DiaNacionalDoCocktail #CocktailDay

Every
May 18

Mullivaikkal Remembrance Day (Sri Lanka)

#MullivaikkalRemembranceDay #May18TamilGenocide …More

Every
May 18

Fibroid Awareness Day (Jamaica)

#FibroidAwarenessDay #NationalFibroidAwarenessDay

Before
...

National Day of First Nations Fishing Rights (Canada)

#FishingRightsDay

Consolidated Hashtag List

Next year, May 18th falls on a Tuesday. Last year, it fell on a Sunday.

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May 2026

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