| 1 Jan, 2026 (Thu) | New Year | Public Holiday |
| 13 Jan, 2026 (Tue) | Constitution Day | Observance |
| 14 Feb, 2026 (Sat) | Valentine's Day | Observance |
| 20 Feb, 2026 (Fri) | Tsagaan Sar | Public Holiday |
| 21 Feb, 2026 (Sat) | Tsagaan Sar Holiday | Public Holiday |
| 22 Feb, 2026 (Sun) | Tsagaan Sar Holiday | Public Holiday |
| 1 Mar, 2026 (Sun) | Patriots' Day | Observance |
| 8 Mar, 2026 (Sun) | International Women's Day | Public Holiday |
| 18 Mar, 2026 (Wed) | Soldiers' Day | Observance |
| 21 Mar, 2026 (Sat) | March Equinox | Season |
| 7 Apr, 2026 (Tue) | Health Day | Observance |
| 26 Apr, 2026 (Sun) | Intellectual Property Day | Observance |
| 15 May, 2026 (Fri) | Family Day | Observance |
| 31 May, 2026 (Sun) | Great Buddha Day | Public Holiday |
| 1 Jun, 2026 (Mon) | Children's Day | Public Holiday |
| 21 Jun, 2026 (Sun) | June Solstice | Season |
| 10 Jul, 2026 (Fri) | Political Flag Day | Observance |
| 10 Jul, 2026 (Fri) | Naadam Holiday (National Day Holiday) | Public Holiday |
| 11 Jul, 2026 (Sat) | Naadam Holiday (National Day) | Public Holiday |
| 12 Jul, 2026 (Sun) | Naadam Holiday (National Day Holiday) | Public Holiday |
| 13 Jul, 2026 (Mon) | Naadam Holiday (National Day Holiday) | Public Holiday |
| 14 Jul, 2026 (Tue) | Naadam Holiday (National Day Holiday) | Public Holiday |
| 15 Jul, 2026 (Wed) | Naadam Holiday (National Day Holiday) | Public Holiday |
| 25 Aug, 2026 (Tue) | Youths Day | Observance |
| 10 Sep, 2026 (Thu) | Repression Victims' Day | Observance |
| 23 Sep, 2026 (Wed) | September Equinox | Season |
| 1 Oct, 2026 (Thu) | Elders' Day | Observance |
| 29 Oct, 2026 (Thu) | Capital City Day | Observance |
| 10 Nov, 2026 (Tue) | Genghis Khan Day (Tentative Date) | Public Holiday |
| 26 Nov, 2026 (Thu) | Republic Day | Public Holiday |
| 10 Dec, 2026 (Thu) | Human Rights Day | Observance |
| 22 Dec, 2026 (Tue) | December Solstice | Season |
| 29 Dec, 2026 (Tue) | Independence Day | Public Holiday |
