Holidays and Observances
Alphabetical Listing of M Holidays

Below, you can find a Holidays and Observances Alphabetical Listing of US Holidays and World Holidays and Observances that start with M.  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

Mother's Day is on the Second Sunday in May and falls on May 11, 2025 

M

• Mabon - September 22, 2025

• Macintosh Computer Day - January 25

• Mad for Plaid Month - March

• Mad Hatter Day - October 6

• MADD's Tie One on for Safety Holiday Campaign - November

• Made in the USA Day - July 2

• Madly In Love With Me Day - February 13

• Magic Circles Day - June 14

• Magic Day - October 31

• Magna Carta Day - June 15

• Magnum P.I. Day - December 11

• MAGS Day - September 29

• Maha Shivaratri (Hindu Holiday) - February 25, 2025 in the United States, February 26, 2025 in other Countries

• Mail Order Catalog Day - August 18

• Maintenance Day - January 18

• Maize Day - November 28, 2025 (Day after Thanksgiving)

• Major League Baseball All Star Game - July 15, 2025

• Make a Book Day - May 8, 2025 (Thursday of National Family Reading Week)

• Make a Difference Day - October 25, 2025 (Last Saturday in October)

• Make A Friend's Day - February 11

• Make a Gift Day - December 3

• Make a Hat Day - September 15

• Make Cut Out Snowflakes Day - December 27

• Make Lunch Count Day - April 13

• Make Mine Chocolate - (Campaign kicks off annually on Feb 15, and ends on Easter which is April 20, 2025)
  

• Make Up Your Mind Day - December 31

• Make Up Your Own Holiday Day - March 26

• Make Up Your Own Sundae Day - July 11

• Make Your Bed Day - September 11

• Make Your Dreams Come True Day - January 13
  

• Make Your Own Head Day - November 28

• Make Your Own Luck Day - August 26

• Malaria Awareness Day - April 25

• Malbec World Day - April 17

• Malcolm X Day - May 19

• Malignant Hyperthermia Awareness and Training Month - March

• Malnutrition Awareness Week - September 8-12, 2025

• Mammography Day - October 17, 2025 (Third Friday in October)

• Man Day - February 9, 2025 (Sunday before Valentines Day)

• Manatee Appreciation Day - March 26, 2025 (Last Wednesday in March)
  

• Manatee Awareness Month (State of Florida) - November 

• Mandela Day - July 18 (also known as Nelson Mandela International Day)

• Mango Day - July 22

• Mango Month - June

• Mantanzas Mule Day - April 27

• Manuary - January

• Maple Syrup Saturday - March 15, 2025 (Third Saturday of March)

• March Equinox (First Day of Spring) - March 20, 2025
  

• March Forth Do Something Day - March 4

• March of Dimes Birth Defects Prevention Month - January
  

• Marching Music Day - March 4

• Mardi Gras Carnival (New Orleans) - March 4, 2024 (47 Days Before Easter)

• Marfan Syndrome Awareness Month - February
  

• Mariachi Day - January 21

• Mariachi USA Festival (Hollywood Bowl) - June 28, 2025

• Marijuana Awareness Month - February

• Marine Corps Reserve Birthday - August 29

• Marine Mammal Rescue Day - April 27

• Marmot Day (Alaska) - February 2

• Marooned Without a Compass Day - November 6

• Married to a Scorpio Support Day - November 18

• Martin Luther King Day of Service - January 20, 2025 (Third Monday in January)
  

• Martin Luther King Jr.'s Birthday - January 20, 2025 (Third Monday in January)

• Martin Z. Mollusk Day - May 10, 2025 (First Saturday in May)

• Martyrdom of the Bab - July 9, 2025

• Maryland Day - March 25, 2025 (On or Around March 25 Each Year)
  

• Math 2.0 Day - July 8
  

• Math Story Telling Day - September 25

• Mathematics and Statistics Awareness Month - April

• Mathematics Education Month - April

• Maundy Thursday - April 17, 2025 (Day before Good Friday - Takes Place During Holy Week)
  

• Mawlid Al Nabi - Evening of September 3, 2025 to Evening of September 4, 2025

• May Day - May 1

• May Ray Day - May 19

• Mayday for Mutts - May 4, 2025 (First Sunday in May)

• Mayflower Day - September 16

• McDonald's Day - April 15

• MCS Awareness Week or Multiple Chemical Sensitivity Awareness Week- May 11-17, 2025 (Second Week in May)

• MCS Awareness Month - May

• MDS World Awareness Day - October 25

• Mead Day - August 2, 2025 (First Saturday in August)

• Meal Monday - February 10, 2025 (Second Monday in February)

• Mean Girls Appreciation Day - October 3

• Meaning of "Is" Day - August 17

• Measure Your Feet Day - January 23
  

• Meatloaf Appreciation Day - October 18

• Mechanical Pencil Day - July 5

• Mediation Week - October 12-18, 2025 (Third Week of October)

• Medic Alert Month - August

• Medical Assistants Recognition Day - October 22, 2025 (Wednesday of the Third Full Week in October)

• Medical Assistants Recognition Week - October 19-25, 2025 (Third Full Week in October)

• Medical Laboratory Professionals Week - April 13-19, 2025

• Medical Surgical Nurses Week - November 1-7

• Medical Transcriptionist Week - May 18-24, 2025 (Third Week in May)

• Medical Ultrasound Awareness Month - October

• Medication Safety Week - April 1-7

• Meditation Week - October 12-18, 2025 (Third Week of October)

• Medjoola Date Day - February 4

• Meet a Mate Week - June 9-15, 2025

• Melanoma Monday - May 5, 2025 (First Monday in May)

• Melanoma / Skin Cancer Detection and Prevention Month - May
  

• Melon Day - August 10, 2025 (Second Sunday in August)

• Melon Month - July

• Memento Mori "Remember You Die" Day - January 3

• Memorial Day - May 26, 2025 (Last Monday in May)

• Memory Day - March 21

• Men's Health Education and Awareness Month - June

• Menstrual Hygiene Day - May 28

• Mental Health Month - May

• Mental Illness Awareness Month - October
  

• Mental Illness Awareness Week - October 5-11, 2025 (First Full Week of October)

• Mental Retardation Awareness Month - March

• Menudo Month - January

• Meow Like a Pirate Day - September 19

• Mermaid Day - June 21, 2025 (Third Saturday in June)

• Mesothelioma Awareness Day - September 26

• Metal Day - November 11

• Meteor Day - June 30

• Metric Conversion Day - December 23

• Metric System Day - April 7

• Michaelmas - September 29

• Mickey Mouse Day - November 18

• Microtia Awareness Day - November 9

• Microvolunteering Day - April 15

• Microwave Oven Day - December 7

• Middle Child Day - August 12

• Middle Level Education Month - March

• Middle Name Pride Day - March 7, 2025 (Friday of First Full Week in March)
  

• Midsummer - June 20, 2025

• Midwife's Day or Women's Day - January 8 (In Greece)

• Milad Un Nabi - September 4-6, 2025 (Depending on what Country you are in - will celebrate on one of these days)

• Military Family Appreciation Month - November

• Military Marriage Day - August 14

• Military Spouse Appreciation Day - May 9, 2025 (2nd Friday in May)

• Milk Day - January 11
  

• Million Minute Family Challenge - September
  

• Miner's Day - December 6

• Miniature Golf Day - September 21

• Minimally Invasive Surgery Week - September 10-13, 2025

• Minority Cancer Awareness Week - Fourth Week of April

• Minority Enterprise Development Week - August 18-24

• Minority Tourism Month - July

• Mischief Night - October 30

• Miss America Pageant - TBD

• Miss American Rose Day - October 20

• Missing and Murdered Indigenous Women Awareness Day (Canada and the United States) - May 5

• Missing Mutts Awareness Day - June 14, 2025 (Second Saturday in June)

• Mitch Lane Day (Did a Rubiks Cube in 6.25 seconds!) - June 25

• Mitochondrial Disease Awareness Week - September 14-20, 2025 (Third Full Week of September)

• Mitten Tree Day - December 6

• Model T Day - October 1

• Molasses Bar Day - February 8

• Mold Awareness Month - September

• Mom's Equal Pay Day - May 6, 2025

• Money Smart Week - Money Smart Week is Retiring (ending)

• Monkey Day - December 14
  

• Monkey Day - July 21
  

• Monopoly Game Day - January 5

• Month of Free Thought - October
  

• Month of the Military Child - April

• Month of the Young Child - April

• Moon Day - July 29

• More Herbs, Less Salt Day - August 29

• Morning Show Hosts Day - September 27

• Morse Code Day - April 27

• Mosquito Day - July 23
  

• Moth-er Day - March 14

• Mother Earth Day - April 22

• Mother, Father Deaf Day - April 27, 2025 (Last Sunday in April)

• Mother Goose Day - May 1

• Mother-In-Law Day - October 26, 2025 (Fourth Sunday in October)

• Mother Ocean Day - May 10, 2025 (Saturday before Mother's Day)

• Mother Whistler Day - May 18

• Mothering Sunday - March 30, 2025 (21 Days Before Easter)

• Mothers At The Wall Day - May 11, 2025 (Always Mother's Day)

• Mother's Day - May 11, 2025 (Second Sunday in May)

• Motorcycle Mass and Blessings of the Bike - May 4, 2025 (First Sunday in May)

• Motorcycle Safety Month - May
  

• Motorist Consideration Monday - August 25, 2025 (Last Monday in August)

• Motorsports Awareness Month - August

• Motorsports Memorial Day - October 10

• Mouthguard Day - September 1, 2025 (First Monday in September)

• Move Hollywood & Broadway to Lebanon, PA Day - February 5
  

• Move More Month - April

• Movember - November

• Movie Theatre Day - April 23

• MS Awareness Week - March 9-15, 2025 (Second Full Week of March)

• Mudbug Madness Days - May 23-25, 2025 (Memorial Day Weekend)

• Mudd Day - December 20

• Muharram (Islamic New Year) - Evening of June 26 to Evening of June 27, 2025 (First Day of First Month in the Islamic Calendar)

• Mule Day - TBD

• Mule Week - TBD

• Mulligan Day - October 17

• Multicultural American Child Awareness Day - June 8, 2025 (Second Sunday in June)

• Multicultural Communication Month - April

• Multicultural Diversity Day - October 20, 2025 (Third Monday in October)

• Mummers Parade - January 1

• Museum Advocacy Days - February 24-25, 2025 (Last Mon/Tues in February)

• Museum Comes to Life Day - June 24

• Museum Day - September 27, 2025 (Fourth Saturday in September)

• Museum Lover's Day - May 5
  

• Museum Selfie Day - January 15, 2025 (Third Wednesday in January)

• Mushroom Month - August

• Music in our Schools Month - March

• Musical Yoga Day - August 26

• Mutation Day - September 29 (Teenage Mutant Ninja Turtles)

• Mutt's Day - July 31

• My Bucket's Got a Hole in it Day - May 30

• My Mom Is a Student Day - October 15

• My Way Day - February 17
  

• Myasthenia Gravis Awareness Month - June

• Myles Day - April 1
  

• Mystery Series Week - October 5-11, 2025 (First Full Week of October)

• Myths & Legends Day For All Fantasy Movie, Books, and Legends Cephalopods - October 11

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

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