| May 2023 | ||
|---|---|---|
| Date | Holiday | Where |
| May-1, Monday | American Loyalty Day | Pennsylvania (Special Days) |
| May-1, Monday | Bird Day | Oklahoma (Designated Days) |
| May-1, Monday | Hemophilia Awareness Day | Arkansas (Observances) |
| May-1, Monday | Law Day | Florida, New Jersey (Designated Days) |
| May-1, Monday | Law Day U.S.A. | Maryland (Commemorative Days) |
| May-1, Monday | Law Day U.S.A. | Nevada (Periods of Observance) |
| May-1, Monday | Law Day U.S.A. | Missouri (Special Days) |
| May-1, Monday | Lei Day | Hawaii (Observances) |
| May-1, Monday | Loyalty Day | South Carolina (Special Days) |
| May-1, Monday | Nurses' Day | Rhode Island (Days of Special Observance) |
| May-1, Monday | Silver Star Families of America Day | Missouri (Special Days) |
| May-1, Monday | Water Professionals Appreciation Day | Georgia (Designated Days) |
| May-1, Monday | Workers' Day | Virgin Islands (Public Holidays) |
| May-2, Tuesday | Alaska Agriculture Day | Alaska (Designated Days) |
| May-2, Tuesday | New York State Teacher Day | New York (Designated Days) |
| May-2, Tuesday | Primary Election Day | Indiana (State Holidays) |
| May-4, Thursday | A Day of Prayer in New Jersey | New Jersey (Designated Days) |
| May-4, Thursday | Alaska Day of Prayer | Alaska (Designated Days) |
| May-4, Thursday | Commonwealth Day of Prayer | Virginia (Designated Days) |
| May-4, Thursday | Commonwealth Day of Prayer and Celebration of Religious Freedom | Pennsylvania (Special Days) |
| May-4, Thursday | Day of Prayer in Illinois | Illinois (State Commemorative Days) |
| May-4, Thursday | Peace Officers Memorial Day | Illinois (State Commemorative Days) |
| May-4, Thursday | Rhode Island Independence Day | Rhode Island (Days of Special Observance) |
| May-4, Thursday | Texas Firefighters Day | Texas (Designated Days) |
| May-5, Friday | Arbor Day | North Dakota, Vermont (Designated Days) |
| May-5, Friday | School Lunch Hero Day | Missouri (Special Days) |
| May-5, Friday | Vietnam Veterans Survivors' and Remembrance Day | South Carolina (Special Days) |
| May-6, Saturday | Green Up Day | Vermont (Designated Days) |
| May-6, Saturday | Veterans Gardening Day | Illinois (State Commemorative Days) |
| May-7, Sunday | Barrier Awareness Day | Kentucky (Special Days) |
| May-7, Sunday | Chaplains Day | Illinois (State Commemorative Days) |
| May-7, Sunday | Loyal Heart Award Day | New Jersey (Designated Days) |
| May-7, Sunday | Vietnam Veterans' Remembrance Day | New Jersey (Designated Days) |
| May-8, Monday | Child Welfare Professionals Recognition Day | Florida (Designated Days) |
| May-8, Monday | Hernando de Soto Day | Mississippi (Designated Days) |
| May-8, Monday | Military Spouse Appreciation Day | Texas (Designated Days) |
| May-8, Monday | New Jersey Economic Development Day | New Jersey (Designated Days) |
| May-8, Monday | Truman Day | Missouri (Special Days) |
| May-8, Monday | Truman Day | Missouri (State Holidays) |
| May-9, Tuesday | Willie Velasquez Day | Texas (Designated Days) |
| May-10, Wednesday | Alaska Mining Day | Alaska (Designated Days) |
| May-10, Wednesday | Confederate Memorial Day | South Carolina (State Holidays) |
| May-10, Wednesday | Mother Mary Ann Bickerdyke Day | Illinois (State Commemorative Days) |
| May-10, Wednesday | Public School Paraprofessional Day | Texas (Designated Days) |
| May-10, Wednesday | Saint Damien de Veuster Day | Hawaii (Observances) |
| May-10, Wednesday | Senior Citizens' Day | Oklahoma (Designated Days) |
| May-11, Thursday | Maryland Centenarians Day | Maryland (Commemorative Days) |
| May-11, Thursday | Rhode Island Hero's Day | Rhode Island (Days of Special Observance) |
| May-11, Thursday | Vietnam Human Rights Day | Virginia (Designated Days) |
| May-12, Friday | Family Respect Day | South Carolina (Special Days) |
| May-12, Friday | Fibromyalgia Awareness Day | South Carolina (Special Days) |
| May-12, Friday | Friendship Day | Rhode Island (Days of Special Observance) |
| May-12, Friday | Native American Day | Wyoming (Designated Days) |
| May-13, Saturday | Negro Baseball League Day | Maryland (Commemorative Days) |
| May-14, Sunday | Mother's Day | Oklahoma (Designated Days) |
| May-14, Sunday | Mother's Day | Kentucky, South Carolina (Special Days) |
| May-14, Sunday | Mothers Day | Illinois (State Commemorative Days) |
| May-14, Sunday | Mothers' Day | Tennessee (Days of Special Observance) |
| May-14, Sunday | Mothers' Day | North Dakota (Designated Days) |
| May-14, Sunday | Mothers' Day | Arizona (Legal Holidays) |
| May-14, Sunday | Mother’s Day | Iowa (Designated Days) |
| May-14, Sunday | Mother’s Day | Nevada (Periods of Observance) |
| May-15, Monday | Hmong-American Veterans Day | Alaska (Designated Days) |
| May-15, Monday | Illinois as National Peace Officers Memorial Day | Illinois (State Commemorative Days) |
| May-15, Monday | Law Enforcement Memorial Day | Florida (Designated Days) |
| May-15, Monday | National Police Memorial Day | Rhode Island (Days of Special Observance) |
| May-15, Monday | Peace Officer Memorial Day | Georgia (Designated Days) |
| May-15, Monday | Peace Officers Memorial Day | New Jersey (Designated Days) |
| May-15, Monday | Peace Officers Memorial Day | Pennsylvania (Special Days) |
| May-15, Monday | Police Officers Memorial Day | Michigan (Designated Days) |
| May-15, Monday | Senior Citizen's Day | New Jersey (Designated Days) |
| May-17, Wednesday | ALS Awareness Day | New Jersey (Designated Days) |
| May-17, Wednesday | Diffuse Intrinsic Pontine Glioma (DIPG) Awareness Day | Illinois (State Commemorative Days) |
| May-17, Wednesday | Diffuse Intrinsic Pontine Glioma Awareness Day | Texas (Designated Days) |
| May-17, Wednesday | Thurgood Marshall Day | New York (Designated Days) |
| May-18, Thursday | Asian Culture Day | Nevada (Periods of Observance) |
| May-18, Thursday | Volunteer Emergency Responder Appreciation Day | Illinois (State Commemorative Days) |
| May-19, Friday | Bike to Work Day | Missouri (Special Days) |
| May-19, Friday | First Responder Mental Health Awareness Day | Illinois (State Commemorative Days) |
| May-19, Friday | Teacher’s Day | Florida (Designated Days) |
| May-20, Saturday | Anniversary of Mecklenburg Declaration of Independence | North Carolina (Legal Holidays) |
| May-20, Saturday | Public Lands Day | Colorado (Designated Days) |
| May-21, Sunday | Citizenship Day | Illinois (State Commemorative Days) |
| May-21, Sunday | Police, Firemen and First Aid Recognition Day | New Jersey (Designated Days) |
| May-21, Sunday | Senior Citizens Day | Illinois (State Commemorative Days) |
| May-22, Monday | Jim Thorpe Day | Oklahoma (Designated Days) |
| May-24, Wednesday | Aviation Maintenance Technician Day | New Jersey (Designated Days) |
| May-24, Wednesday | Lung Cancer Awareness Day | Texas (Designated Days) |
| May-25, Thursday | Children's Memorial Day | New Jersey (Designated Days) |
| May-27, Saturday | Alaska Public Gardens Day | Alaska (Designated Days) |
| May-27, Saturday | Bluegrass Day | Tennessee (Days of Special Observance) |
| May-27, Saturday | Hubert H. Humphrey, Jr. Day | Pennsylvania (Special Days) |
| May-27, Saturday | Rachel Carson Day | Pennsylvania (Special Days) |
| May-29, Monday | Fitzgerald Kennedy Day | Michigan (Designated Days) |
| May-29, Monday | Memorial Day | Dist. of Columbia (Legal Holidays) |
| May-29, Monday | Memorial Day | Arkansas, Illinois, New Jersey, US Banks, Wisconsin |
| May-29, Monday | Memorial Day | Federal (Federal Holidays) |
| May-29, Monday | Memorial Day | Florida, Maryland, Massachusetts, New York (Legal Holidays) |
| May-29, Monday | Memorial Day | New York Stock Exchange (NYSE Holidays) |
| May-29, Monday | Memorial Day | Alabama, California, Connecticut, Pennsylvania, United States Postal Service (Public Holidays) |
| May-29, Monday | Memorial Day | Alaska, Arizona, Colorado, Delaware, Georgia, Hawaii, Idaho, Indiana, Iowa, Kansas, Kentucky, Maine, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Mexico, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Rhode Island, South Dakota, Tennessee, Utah, Vermont, Virginia, Washington, West Virginia, Wyoming (State Holidays) |
| May-29, Monday | Memorial Day" | Texas (State Holidays) |
| May-29, Monday | Memorial Day | Florida (Public Holidays) |
| May-29, Monday | National Memorial Day | Louisiana (Legal Holidays) |
| May-29, Monday | National Memorial Day | Mississippi, South Carolina (State Holidays) |
| May-31, Wednesday | Katie John Day | Alaska (Designated Days) |