| January | New Year’s Day | 2023-01-01 Sunday | Public holidays |
| Seollal Holiday | 2023-01-21 Saturday | Public holidays | |
| Seollal Holiday | 2023-01-22 Monday | Public holidays | |
| Seollal Holiday | 2023-01-23 Monday | Public holidays | |
| February | Valentine’s Day | 2023-02-14 Tuesday | Holidays or anniversaries |
| March | Independence Movement Day | 2023-03-01 Wednesday | Legal holidays |
| April | Arbor Day | 2023-04-05 Wednesday | Holidays or anniversaries |
| May | Labor Day / May Day | 2023-05-01 Monday | Bank holidays |
| Children’s Day | 2023-05-05 Friday | Public holidays | |
| Parents’ Day | 2023-05-08 Monday | Festivals or anniversaries | |
| Teacher’s Day | 2023-05-15 Monday | Holidays or anniversaries | |
| Buddha’s Birthday | 2023-05-26 Friday | Public holidays | |
| June | Memorial Day | 2023-06-06 Tuesday | Holidays or anniversaries |
| July | Constitution Day | 2023-07-17 Monday | Holidays or anniversaries |
| August | Liberation Day Observed | 2023-08-15 Tuesday | Public holidays |
| September | Chuseok Holiday | 2023-09-28 Thursday | Public holidays |
| Chuseok Holiday | 2023-09-29 Friday | Public holidays | |
| Chuseok Holiday | 2023-09-30 Saturday | Public holidays | |
| October | Armed Forces Day | 2023-10-01 Sunday | Holidays or anniversaries |
| National Foundation Day | 2023-10-03 Tuesday | Legal holidays | |
| Hangeul Proclamation Day | 2023-10-09 Monday | Legal holidays | |
| Halloween | 2023-10-31 Tuesday | Holidays or anniversaries | |
| December | Christmas Eve | 2023-12-24 Sunday | Holidays or anniversaries |
| Christmas Day | 2023-12-25 Monday | Public holidays | |
| New Year’s Eve | 2023-12-31 Sunday | Holidays or anniversaries |
