Official Holiday for 2026 (B.E. 2569)
Royal Thai Embassy, London
| January | 1 | Thursday | New Year’s Day | UK/TH |
| 2 | Friday | Additional Special Public Holiday | TH | |
| April | 3 | Friday | Good Friday | UK |
| 6 | Monday | Chakri Memorial Day/Easter Monday | UK/TH | |
| 13 | Monday | Songkran Day | TH | |
| 14 | Tuesday | Songkran Day | TH | |
| May | 4 | Monday | Coronation Day / May Bank Holiday | UK/TH |
| 25 | Monday | Spring Bank Holiday | UK | |
| June | 1 | Monday | Substitution for Visakha Bucha Day | TH |
| 3 | Wednesday | H.M. Queen Suthida’s Birthday | TH | |
| July | 28 | Tuesday | H.M. King Maha Vajiralongkorn’s Birthday | TH |
| August | 12 | Wednesday | H.M. Queen Sirikit’s Birthday | TH |
| 31 | Monday | Summer Bank Holiday | UK | |
| October | 13 | Tuesday | H.M. King Bhumibol Adulyadej The Great | TH |
| Memorial Day | ||||
| 23 | Friday | King Chulalongkorn Memorial Day | TH | |
| December | 7 | Monday | The Great’s Birthday Anniversary/National Day | TH |
| /Thai Father’s Day | ||||
| 10 | Thursday | Constitution Day | TH | |
| 25 | Friday | Christmas Day | UK | |
| 28 | Monday | Boxing Day | UK | |
| 31 | Thursday | New Year’s Eve | UK/TH |
Remark: UK– วันหยุดของประเทศอังกฤษ (British Holiday)/ TH – วันหยุดของประเทศไทย (Thai Holiday)