1991 Holidays
| Holidays 1991 | Week Day | Date |
| New Year's Day | Tuesday | January 1, 1991 |
| Epiphany | Sunday | January 6, 1991 |
| Martin Luther King Jr's Day | Monday | January 21, 1991 |
| Ground Hog Day | Saturday | February 2, 1991 |
| Ash Wednesday | Wednesday | February 13, 1991 |
| Valentine's Day | Thursday | February 14, 1991 |
| President's Day | Monday | February 18, 1991 |
| Saint Patrick's Day | Sunday | March 17, 1991 |
| Palm Sunday | Sunday | March 24, 1991 |
| Good Friday | Friday | March 29, 1991 |
| Easter | Sunday | March 31, 1991 |
| Easter Monday | Monday | April 1, 1991 |
| Income Tax Day | Monday | April 15, 1991 |
| Earth Day | Monday | April 22, 1991 |
| Arbor Day | Friday | April 26, 1991 |
| Cinco de Mayo | Sunday | May 5, 1991 |
| Mother's Day | Sunday | May 12, 1991 |
| National Maritime Day | Wednesday | May 22, 1991 |
| National Missing Children's Day | Saturday | May 25, 1991 |
| Memorial Day | Monday | May 27, 1991 |
| D-Day | Thursday | June 6, 1991 |
| Flag Day | Friday | June 14, 1991 |
| Father's Day | Sunday | June 16, 1991 |
| Independence Day | Thursday | July 4, 1991 |
| Labor Day | Monday | September 2, 1991 |
| Grandparent's Day | Sunday | September 8, 1991 |
| Patriot Day | Wednesday | September 11, 1991 |
| Columbus Day | Monday | October 14, 1991 |
| Halloween | Thursday | October 31, 1991 |
| All Saints' Day | Friday | November 1, 1991 |
| All Souls' Day | Saturday | November 2, 1991 |
| Election Day | Tuesday | November 5, 1991 |
| Veteran's Day | Monday | November 11, 1991 |
| Thanksgiving Day | Thursday | November 28, 1991 |
| Black Friday | Friday | November 29, 1991 |
| Cyber Monday | Monday | December 2, 1991 |
| Pearl Harbor Day | Saturday | December 7, 1991 |
| Feast of the Immaculate Conception | Sunday | December 8, 1991 |
| Christmas Eve | Tuesday | December 24, 1991 |
| Christmas Day | Wednesday | December 25, 1991 |
| New Year's Eve | Tuesday | December 31, 1991 |