| 1 Jan, 2026 (Thu) | New Year's Day | National Holiday |
| 2 Jan, 2026 (Fri) | New Year Special Holiday | National Holiday |
| 10 Jan, 2026 (Sat) | National Children's Day | Observance |
| 16 Jan, 2026 (Fri) | Teachers' Day | Observance |
| 14 Feb, 2026 (Sat) | Valentine's Day | Observance |
| 17 Feb, 2026 (Tue) | Chinese New Year's Day | Observance |
| 18 Feb, 2026 (Wed) | Second Day of Chinese New Year | Observance |
| 19 Feb, 2026 (Thu) | Third Day of Chinese New Year | Observance |
| 3 Mar, 2026 (Tue) | Makha Bucha | National Holiday |
| 21 Mar, 2026 (Sat) | March Equinox | Season |
| 6 Apr, 2026 (Mon) | Chakri Day | National Holiday |
| 13 Apr, 2026 (Mon) | Songkran | National Holiday |
| 14 Apr, 2026 (Tue) | Songkran Holiday | National Holiday |
| 15 Apr, 2026 (Wed) | Songkran Holiday | National Holiday |
| 1 May, 2026 (Fri) | Labor Day | National Holiday |
| 4 May, 2026 (Mon) | Coronation Day | National Holiday |
| 11 May, 2026 (Mon) | Royal Ploughing Ceremony Day | Government Holiday |
| 31 May, 2026 (Sun) | Visakha Bucha | National Holiday |
| 1 Jun, 2026 (Mon) | Day off for Visakha Bucha | National Holiday |
| 3 Jun, 2026 (Wed) | Queen Suthida's Birthday | National Holiday |
| 21 Jun, 2026 (Sun) | June Solstice | Season |
| 28 Jul, 2026 (Tue) | King Vajiralongkorn's Birthday | National Holiday |
| 29 Jul, 2026 (Wed) | Asalha Bucha | National Holiday |
| 12 Aug, 2026 (Wed) | The Queen Mother's Birthday | National Holiday |
| 23 Sep, 2026 (Wed) | September Equinox | Season |
| 24 Sep, 2026 (Thu) | Mahidol Day | Observance |
| 13 Oct, 2026 (Tue) | Anniversary of the Death of King Bhumibol | National Holiday |
| 23 Oct, 2026 (Fri) | Chulalongkorn Day | National Holiday |
| 31 Oct, 2026 (Sat) | Halloween | Observance |
| 5 Dec, 2026 (Sat) | King Bhumibol's Birthday | National Holiday |
| 7 Dec, 2026 (Mon) | King Bhumibol's Birthday observed | National Holiday |
| 10 Dec, 2026 (Thu) | Constitution Day | National Holiday |
| 22 Dec, 2026 (Tue) | December Solstice | Season |
| 24 Dec, 2026 (Thu) | Christmas Eve | Observance |
| 25 Dec, 2026 (Fri) | Christmas Day | Observance |
| 31 Dec, 2026 (Thu) | New Year's Eve | National Holiday |
