Baba Marta (Bulgaria) no relation March 10
Fixed
March 1
Baba Marta (Bulgaria),
Beer Day (Iceland)
Commemoration of Mustafa Barzani's Death (Iraqi Kurdistan)
Heroes' Day (Paraguay)
Independence Day (Bosnia and Herzegovina)
Mărțișor (Romania and Moldavia)
National Peanut Butter Day (United States)
National Pig Day (United States)
Remembrance Day (Marshall Islands)
Saint David's Day (Wales)
Samiljeol (South Korea)
Self-injury Awareness Day (International observance)
World Civil Defence Day
March 2
National Banana Creme Pie Day (United States)
National Reading Day (United States)
Omizu-okuri ("Water Carrying") Festival (Obama, Japan)
Peasant's Day (Burma)
Texas Independence Day (Texas, United States)
Victory at Adwa Day (Ethiopia)
March 3
Hinamatsuri (Japan)
Liberation Day (Bulgaria)
Martyr's Day (Malawi)
Mother's Day (Georgia)
National Canadian Bacon Day (United States)
Sportsmen's Day (Egypt)
What if Cats & Dogs Had Opposable Thumbs Day
World Wildlife Day
March 4
National Grammar Day (United States)
St Casimir's Day (Poland and Lithuania)
March 5
Custom Chief's Day (Vanuatu)
Day of Physical Culture and Sport (Azerbaijan)
Learn from Lei Feng Day (China)
National Absinthe Day (United States)
National Cheez Doodle Day (United States)
St Piran's Day (Cornwall)
March 6
European Day of the Righteous ( Europe)
Foundation Day (Norfolk Island)
Independence Day (Ghana)
March 7
Liberation of Sulaymaniyah (Iraqi Kurdistan)
National Crown Roast of Pork Day (United States)
Teacher's Day (Albania)
March 8
International Women's Day
International Women's Collaboration Brew Day
Mother's Day (primarily Eastern Europe, Russia, and the former Soviet bloc)
National Peanut Cluster Day (United States)
National Potato Salad Day (United States)
March 9
National Crabmeat Day (United States)
National Meatball Day (United States)
Panic Day
Teachers' Day (Lebanon)
March 10
Harriet Tubman Day (United States of America)
Holocaust Remembrance Day (Bulgaria)
Hote Matsuri (Shiogama, Japan)
National Blueberry Popover Day Day (United States)
National Mario Day (United States)
National Women and Girls HIV/AIDS Awareness Day (United States)
Tibetan Uprising Day (Tibetan independence movement)
March 11
Day of Restoration of Independence of Lithuania
Johnny Appleseed Day (United States)
Moshoeshoe Day (Lesotho)
Oatmeal Nut Waffles Day (United States)
March 12
Arbor Day (China)
Arbor Day (Taiwan)
Aztec New Year
Girl Scout Birthday (United States)
National Baked Scallops Day  (United States)
National Day (Mauritius)
Tree Day (North Macedonia)
World Day Against Cyber Censorship
Youth Day (Zambia)
March 13
Anniversary of the election of Pope Francis (Vatican City)
Kasuga Matsuri (Kasuga Grand Shrine, Nara, Japan)
L. Ron Hubbard's birthday (Scientology)
Liberation of Duhok City (Iraqi Kurdistan)
National Coconut Torte Day (United States)
March 14
Multiple Sclerosis Awareness Week March 14 to March 20 (United States)
Pi Day
White Day (Asia)
March 15
Hōnen Matsuri (Japan)
International Day Against Police Brutality
J. J. Roberts' Birthday (Liberia)
National Brutus Day (United States)
National Day (Hungary)
True Confessions Day
World Consumer Rights Day
World Contact Day
World Day of Muslim Culture, Peace, Dialogue and Film
World Speech Day
Youth Day (Palau)
March 16
Day of the Book Smugglers (Lithuania)
Remembrance day of the Latvian legionnaires (Latvia)
Halabja Day (Iraqi Kurdistan)
Lips Appreciation Day
Saint Urho's Day (Finnish Americans and Finnish Canadians)
March 17
Children's Day (Bangladesh)
Evacuation Day (Massachusetts) (Suffolk County, Massachusetts)
Saint Patrick's Day (Ireland, Irish diaspora)
March 18
Anniversary of the Oil Expropriation (Mexico)
Flag Day (Aruba)
Forgive Mom and Dad Day
Gallipoli Memorial Day (Turkey)
Men's and Soldiers' Day (Mongolia)
Teacher's Day (Syria)
March 19
Kashubian Unity Day (Poland)
Minna Canth's Birthday (Finland)
March 20
Feast of the Supreme Ritual (Thelema)
Great American Meatout (United States)
International Day of Happiness (United Nations)
Independence Day (Tunisia)
International Francophonie Day (Organisation internationale de la Francophonie), and its related observance:
UN French Language Day (United Nations)
Liberation of Kirkuk City (Iraqi Kurdistan)
National Native HIV/AIDS Awareness Day (United States)
World Sparrow Day
March 21
Arbor Day (Portugal)
Birth of Benito Juárez, a Fiestas Patrias (Mexico)
Harmony Day (Australia)
Human Rights Day (South Africa)
Independence Day (Namibia)
International Colour Day (International observance)
International Day for the Elimination of Racial Discrimination (International observance)
International Day of Forests (International observance)
Mother's Day (most of the Arab world)
National Tree Planting Day (Lesotho)
Truant's Day (Poland, Faroe Islands)
World Down Syndrome Day (International observance)
World Poetry Day (International observance)
World Puppetry Day (International observance)
Youth Day (Tunisia)
March 22
As Young As You Feel Day
Emancipation Day (Puerto Rico)
World Water Day
March 23
Day of the Sea (Bolivia)
Ministry of Environment and Natural Resources Day (Azerbaijan)
National Chips and Dip Day (United States)
Pakistan Day (Pakistan)
Promised Messiah Day (Ahmadiyya)
World Meteorological Day
March 24
Commonwealth Covenant Day (Northern Mariana Islands, United States)
Day of Remembrance for Truth and Justice (Argentina)
Day of National Revolution (Kyrgyzstan)
International Day for the Right to the Truth Concerning Gross Human Rights Violations and for the Dignity of Victims (United Nations)
National Tree Planting Day (Uganda)
Student Day (Scientology)
World Tuberculosis Day
March 25
Anniversary of the Arengo and the Feast of the Militants (San Marino)
Cultural Workers Day (Russia)
Empress Menen's Birthday (Rastafari)
EU Talent Day (European Union)
Feast of the Annunciation (Christianity), and its related observances:
Lady Day (United Kingdom) (see Quarter Days)
International Day of the Unborn Child (international)
Mother's Day (Slovenia)
Waffle Day (Sweden)
Freedom Day (Belarus)
International Day of Remembrance of the Victims of Slavery and the Transatlantic Slave Trade
International Day of Solidarity with Detained and Missing Staff Members (United Nations General Assembly)
Maryland Day (Maryland, United States)
Revolution Day (Greece)
Struggle for Human Rights Day (Slovakia)
Tolkien Reading Day (Tolkien fandom)
March 26
Independence Day (Bangladesh)
Make Up Your Own Holiday Day
Martyr's Day or Day of Democracy (Mali)
Prince Kūhiō Day (Hawaii, United States)
Purple Day (Canada and United States)
March 27
Armed Forces Day (Myanmar)
International whisk(e)y day
Quirky Country Music Song Titles Day
World Theatre Day (International)
March 28
Commemoration of Sen no Rikyū (Schools of Japanese tea ceremony)
Serfs Emancipation Day (Tibet)
Teachers' Day (Czech Republic and Slovakia)
March 29
Boganda Day (Central African Republic)
Commemoration of the 1947 Rebellion (Madagascar)
Day of the Young Combatant (Chile)
Youth Day (Taiwan)
March 30
Land Day (Palestine)
National Doctors' Day (United States)
Spiritual Baptist/Shouter Liberation Day (Trinidad and Tobago)
World Idli Day
March 31
César Chávez Day (United States)
Culture Day (Public holidays in the Federated States of Micronesia)
Day of Genocide of Azerbaijanis (Azerbaijan)
Freedom Day (Malta)
International Transgender Day of Visibility
King Nangklao Memorial Day (Thailand)
National Backup Day (United States)
National Clams on the Half Shell Day (United States)
Thomas Mundy Peterson Day (New Jersey, United States)
Transfer Day (US Virgin Islands)
no relation