Information about legal national holidays across the globe.
Weekend holidays are displayed in gray.
| 2021 Day | Public Holiday |
| Friday, January 01 | New Year's Day |
| Friday, February 12 | Bridge Public Holiday |
| Friday, February 26 | Makha Bucha |
| Tuesday, April 06 | Chakri Memorial Day |
| Monday, April 12 | Bridge Public Holiday |
| Tuesday, April 13 | Songkran Festival |
| Wednesday, April 14 | Songkran Festival |
| Thursday, April 15 | Songkran Festival |
| Saturday, May 01 | National Labor Day |
| Monday, May 03 | National Labor Day (in lieu) |
| Tuesday, May 04 | Coronation Day |
| Wednesday, May 26 | Visakha Bucha |
| Thursday, June 03 | HM Queen Suthida's Birthday |
| Saturday, July 24 | Asarnha Bucha |
| Sunday, July 25 | Buddhist Lent Day |
| Monday, July 26 | Asarnha Bucha (in lieu) |
| Wednesday, July 28 | HM King Maha Vajiralongkorn's Birthday |
| Thursday, August 12 | HM Queen Sirikit The Queen Mother's Birthday |
| Friday, September 24 | Bridge Public Holiday |
| Wednesday, October 13 | HM King Bhumibol Adulyadej the Great Memorial Day |
| Saturday, October 23 | HM King Chulalongkorn Memorial Day |
| Monday, October 25 | HM King Chulalongkorn Memorial Day (in lieu) |
| Sunday, December 05 | HM King Bhumibol Adulyadej the Great's Birthday |
| Monday, December 06 | HM King Bhumibol Adulyadej the Great's Birthday (in lieu) |
| Friday, December 10 | Constitution Day |
| Friday, December 31 | New Year's Eve |