| 1 Jan, 2023 (Sun) | New Year's Day | National holiday |
| 2 Jan, 2023 (Mon) | New Year's Day Holiday | National holiday |
| 16 Jan, 2023 (Mon) | Signing of the Peace Accords | Observance |
| 8 Mar, 2023 (Wed) | Women's Day | Observance |
| 20 Mar, 2023 (Mon) | March Equinox | Season |
| 2 Apr, 2023 (Sun) | Palm Sunday | Observance, Christian |
| 6 Apr, 2023 (Thu) | Maundy Thursday | National holiday, Christian |
| 7 Apr, 2023 (Fri) | Good Friday | National holiday, Christian |
| 8 Apr, 2023 (Sat) | Holy Saturday | National holiday, Christian |
| 9 Apr, 2023 (Sun) | Easter Sunday | Observance, Christian |
| 1 May, 2023 (Mon) | Labor Day / May Day | National holiday |
| 3 May, 2023 (Wed) | Cross Day | Observance |
| 7 May, 2023 (Sun) | Soldiers' Day | Observance |
| 10 May, 2023 (Wed) | Mothers' Day | National holiday |
| 17 Jun, 2023 (Sat) | Fathers' Day | National holiday |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 22 Jun, 2023 (Thu) | Teachers' Day | Optional holiday |
| 7 Jul, 2023 (Fri) | San Salvador Games 2023 Public Holiday | National holiday |
| 3 Aug, 2023 (Thu) | San Salvador Day 1 (S. Salvador only) | Local holiday |
| 5 Aug, 2023 (Sat) | San Salvador Day 2 (S. Salvador only) | Local holiday |
| 6 Aug, 2023 (Sun) | Celebrations of San Salvador | National holiday |
| 15 Sep, 2023 (Fri) | Independence Day | National holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 1 Oct, 2023 (Sun) | Children's Day | Observance |
| 2 Nov, 2023 (Thu) | All Saints Day | National holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 24 Dec, 2023 (Sun) | Christmas Eve | Observance, Christian |
| 25 Dec, 2023 (Mon) | Christmas Day | National holiday, Christian |
| 31 Dec, 2023 (Sun) | New Year's Eve | Observance |
