1973 Holidays
| Holidays 1973 | Week Day | Date |
| New Year's Day | Monday | January 1, 1973 |
| Epiphany | Saturday | January 6, 1973 |
| Martin Luther King Jr's Day | Monday | January 15, 1973 |
| Inauguration Day | Saturday | January 20, 1973 |
| Ground Hog Day | Friday | February 2, 1973 |
| Valentine's Day | Wednesday | February 14, 1973 |
| President's Day | Monday | February 19, 1973 |
| Ash Wednesday | Wednesday | March 7, 1973 |
| Saint Patrick's Day | Saturday | March 17, 1973 |
| Income Tax Day | Sunday | April 15, 1973 |
| Palm Sunday | Sunday | April 15, 1973 |
| Good Friday | Friday | April 20, 1973 |
| Earth Day | Sunday | April 22, 1973 |
| Easter | Sunday | April 22, 1973 |
| Easter Monday | Monday | April 23, 1973 |
| Arbor Day | Friday | April 27, 1973 |
| Cinco de Mayo | Saturday | May 5, 1973 |
| Mother's Day | Sunday | May 13, 1973 |
| National Maritime Day | Tuesday | May 22, 1973 |
| National Missing Children's Day | Friday | May 25, 1973 |
| Memorial Day | Monday | May 28, 1973 |
| D-Day | Wednesday | June 6, 1973 |
| Flag Day | Thursday | June 14, 1973 |
| Father's Day | Sunday | June 17, 1973 |
| Independence Day | Wednesday | July 4, 1973 |
| Labor Day | Monday | September 3, 1973 |
| Grandparent's Day | Sunday | September 9, 1973 |
| Patriot Day | Tuesday | September 11, 1973 |
| Columbus Day | Monday | October 8, 1973 |
| Halloween | Wednesday | October 31, 1973 |
| All Saints' Day | Thursday | November 1, 1973 |
| All Souls' Day | Friday | November 2, 1973 |
| Election Day | Tuesday | November 6, 1973 |
| Veteran's Day | Sunday | November 11, 1973 |
| Thanksgiving Day | Thursday | November 22, 1973 |
| Black Friday | Friday | November 23, 1973 |
| Cyber Monday | Monday | November 26, 1973 |
| Pearl Harbor Day | Friday | December 7, 1973 |
| Feast of the Immaculate Conception | Saturday | December 8, 1973 |
| Christmas Eve | Monday | December 24, 1973 |
| Christmas Day | Tuesday | December 25, 1973 |
| New Year's Eve | Monday | December 31, 1973 |