The District of South Carolina will observe the following legal public holidays in calendar year 2023.
| Holiday | Day | Observed |
| New Year's Day | Monday | January 2* |
| Martin Luther King, Jr's Birthday | Monday | January 16 |
| Washington's Birthday | Monday | February 20 |
| Memorial Day | Monday | May 29 |
| Juneteenth National Independence Day | Monday | June 19 |
| Independence Day | Tuesday | July 4 |
| Labor Day | Monday | September 4 |
| Columbus Day | Monday | October 9 |
| Veterans Day | Friday | November 10* |
| Thanksgiving Day | Thursday | November 23 |
| Christmas Day | Monday | December 25 |
* Holiday observed