| 1 Jan, 2026 (Thu) | New Year's Day | National Holiday |
| 16 Feb, 2026 (Mon) | Carnival / Shrove Monday | National Holiday |
| 17 Feb, 2026 (Tue) | Carnival / Shrove Tuesday / Pancake Day | National Holiday |
| 18 Feb, 2026 (Wed) | Ramadan Start (Tentative Date) | Observance |
| 20 Mar, 2026 (Fri) | End of Ramadan (Tentative Date) | Optional Holiday |
| 20 Mar, 2026 (Fri) | March Equinox | Season |
| 24 Mar, 2026 (Tue) | Memorial Day | National Holiday |
| 1 Apr, 2026 (Wed) | Passover Eve | Observance |
| 2 Apr, 2026 (Thu) | Maundy Thursday | Optional Holiday |
| 2 Apr, 2026 (Thu) | Day of the Veterans | National Holiday |
| 2 Apr, 2026 (Thu) | First day of Passover | Optional Holiday |
| 3 Apr, 2026 (Fri) | Good Friday | National Holiday, Christian |
| 3 Apr, 2026 (Fri) | Second Day of Passover | Optional Holiday |
| 5 Apr, 2026 (Sun) | Easter Sunday | Observance, Christian |
| 7 Apr, 2026 (Tue) | Sixth Day of Passover | Observance |
| 8 Apr, 2026 (Wed) | Seventh Day of Passover | Optional Holiday |
| 9 Apr, 2026 (Thu) | Last day of Passover | Optional Holiday |
| 24 Apr, 2026 (Fri) | Action Day for Tolerance and Respect between People | Observance |
| 1 May, 2026 (Fri) | Labor Day | National Holiday |
| 25 May, 2026 (Mon) | National Day/May 1810 Revolution | National Holiday |
| 27 May, 2026 (Wed) | Eid al-Adha (Tentative Date) | Optional Holiday |
| 17 Jun, 2026 (Wed) | Muharram/New Year (Tentative Date) | Optional Holiday |
| 17 Jun, 2026 (Wed) | Commemoration of General Don Martín Miguel de Güemes | National Holiday |
| 20 Jun, 2026 (Sat) | Flag Day | National Holiday |
| 21 Jun, 2026 (Sun) | June Solstice | Season |
| 9 Jul, 2026 (Thu) | Independence day | National Holiday |
| 17 Aug, 2026 (Mon) | San Martín Day | National Holiday |
| 11 Sep, 2026 (Fri) | Rosh Hashana Eve | Optional Holiday |
| 12 Sep, 2026 (Sat) | Rosh Hashana | Optional Holiday |
| 13 Sep, 2026 (Sun) | Second day of Rosh Hashana | Optional Holiday |
| 20 Sep, 2026 (Sun) | Yom Kippur Eve | Optional Holiday |
| 21 Sep, 2026 (Mon) | Yom Kippur | Optional Holiday |
| 23 Sep, 2026 (Wed) | September Equinox | Season |
| 12 Oct, 2026 (Mon) | Day of Respect for Cultural Diversity | National Holiday |
| 18 Oct, 2026 (Sun) | Mothers' Day | Observance |
| 23 Nov, 2026 (Mon) | National Sovereignty Day | National Holiday |
| 8 Dec, 2026 (Tue) | Immaculate Conception | National Holiday |
| 21 Dec, 2026 (Mon) | December Solstice | Season |
| 25 Dec, 2026 (Fri) | Christmas Day | National Holiday, Christian |
| 31 Dec, 2026 (Thu) | New Year's Eve | Observance |
