| 2 Jan, 2026 (Fri) | Birthday of Imam Ali and Father's Day | National Holiday |
| 17 Jan, 2026 (Sat) | Prophet's Ascension | National Holiday |
| 3 Feb, 2026 (Tue) | Imam Mahdi's birthday (Tentative Date) | National Holiday |
| 11 Feb, 2026 (Wed) | Revolution Day | National Holiday |
| 19 Feb, 2026 (Thu) | Ramadan Start (Tentative Date) | Observance |
| 11 Mar, 2026 (Wed) | Martyrdom of Imam Ali (Tentative Date) | National Holiday |
| 19 Mar, 2026 (Thu) | Oil Nationalization Day | National Holiday |
| 20 Mar, 2026 (Fri) | Eid-e-Fetr (Tentative Date) | National Holiday |
| 20 Mar, 2026 (Fri) | March Equinox | Season |
| 21 Mar, 2026 (Sat) | Eid-e-Fetr Holiday (Tentative Date) | National Holiday |
| 1 Apr, 2026 (Wed) | Islamic Republic Day | National Holiday |
| 13 Apr, 2026 (Mon) | Martyrdom of Imam Sadeq | National Holiday |
| 27 May, 2026 (Wed) | Eid-e-Ghorban (Tentative Date) | National Holiday |
| 4 Jun, 2026 (Thu) | Eid-e-Ghadir (Tentative Date) | National Holiday |
| 4 Jun, 2026 (Thu) | Anniversary of Khomeini's Death | National Holiday |
| 5 Jun, 2026 (Fri) | Revolt of Khordad 15 | National Holiday |
| 21 Jun, 2026 (Sun) | June Solstice | Season |
| 24 Jun, 2026 (Wed) | Tassoua (Tentative Date) | National Holiday |
| 25 Jun, 2026 (Thu) | Ashura (Tentative Date) | National Holiday |
| 4 Aug, 2026 (Tue) | Arbaeen (Tentative Date) | National Holiday |
| 12 Aug, 2026 (Wed) | Demise of Prophet Muhammad and Martyrdom of Imam Hassan (Tentative Date) | National Holiday |
| 14 Aug, 2026 (Fri) | Martyrdom of Imam Reza (Tentative Date) | National Holiday |
| 21 Aug, 2026 (Fri) | Martyrdom of Imam Hasan al-Askari (Tentative Date) | National Holiday |
| 30 Aug, 2026 (Sun) | Birthday of Prophet Muhammad and Imam Sadeq (Tentative Date) | National Holiday |
| 23 Sep, 2026 (Wed) | September Equinox | Season |
| 13 Nov, 2026 (Fri) | Martyrdom of Hazrat Fatima (Tentative Date) | National Holiday |
| 22 Dec, 2026 (Tue) | December Solstice | Season |
| 23 Dec, 2026 (Wed) | Birthday of Imam Ali and Father's Day | National Holiday |
