| January | New Year’s Day | 2023-01-01 Sunday | Legal holidays |
| New Year’s Day | 2023-01-02 Monday | Legal holidays | |
| Children’s Day | 2023-01-14 Saturday | Holidays or anniversaries | |
| Teacher’s Day | 2023-01-16 Monday | Holidays or anniversaries | |
| Chinese Lunar New Year’s Day | 2023-01-22 Sunday | Holidays or anniversaries | |
| The second day of the Chinese Lunar New Year | 2023-01-23 Monday | Holidays or anniversaries | |
| The third day of the Chinese Lunar New Year | 2023-01-24 Tuesday | Holidays or anniversaries | |
| April | Chakri Day | 2023-04-06 Thursday | Legal holidays |
| Songkran | 2023-04-13 Thursday | Legal holidays | |
| May | Labor Day / May Day | 2023-05-01 Monday | Legal holidays |
| July | King Vajiralongkorn’s Birthday | 2023-07-28 Friday | Legal holidays |
| August | The Queen’s Birthday | 2023-08-11 Friday | Legal holidays |
| Mother’s Day | 2023-08-11 Friday | Legal holidays | |
| Mother’s Day | 2023-08-12 Saturday | Legal holidays | |
| The Queen’s Birthday | 2023-08-12 Saturday | Legal holidays | |
| October | Anniversary of the Death of King Bhumibol | 2023-10-13 Friday | Legal holidays |
| Chulalongkorn Day | 2023-10-23 Monday | Legal holidays | |
| Halloween | 2023-10-31 Tuesday | Holidays or anniversaries | |
| December | Father’s Day | 2023-12-05 | Legal holidays |
| Constitution Day | 2023-12-10 | Legal holidays | |
| Constitution Day | 2023-12-11 | Legal holidays | |
| Christmas Eve | 2023-12-24 | Holidays or anniversaries | |
| Christmas Day | 2023-12-25 | Holidays or anniversaries | |
| New Year’s Eve | 2023-12-31 | Legal holidays |
