| 1 Jan, 2023 (Sun) | New Year's Day | Observance |
| 2 Jan, 2023 (Mon) | New Year's Day Holiday | Autonomous Community Holiday |
| 2 Jan, 2023 (Mon) | Reconquest Day | Observance |
| 6 Jan, 2023 (Fri) | Epiphany | National holiday |
| 14 Feb, 2023 (Tue) | Valentine's Day | Observance |
| 20 Feb, 2023 (Mon) | Carnival Monday | Observance |
| 21 Feb, 2023 (Tue) | Carnival Tuesday | Observance |
| 21 Feb, 2023 (Tue) | Carnival Tuesday | Autonomous Community Holiday |
| 22 Feb, 2023 (Wed) | Ash Wednesday | Observance |
| 28 Feb, 2023 (Tue) | Day of Andalucía | Autonomous Community Holiday |
| 1 Mar, 2023 (Wed) | Day of the Balearic Islands | Autonomous Community Holiday |
| 19 Mar, 2023 (Sun) | Fathers' Day | Observance |
| 19 Mar, 2023 (Sun) | San Jose | Autonomous Community Holiday |
| 19 Mar, 2023 (Sun) | San Jose | Observance |
| 20 Mar, 2023 (Mon) | Day off for San Jose | Autonomous Community Holiday |
| 21 Mar, 2023 (Tue) | March Equinox | Season |
| 26 Mar, 2023 (Sun) | Daylight Saving Time starts | Clock change/Daylight Saving Time |
| 2 Apr, 2023 (Sun) | Palm Sunday | Observance |
| 6 Apr, 2023 (Thu) | Maundy Thursday | Autonomous Community Holiday |
| 7 Apr, 2023 (Fri) | Good Friday | National holiday |
| 8 Apr, 2023 (Sat) | Holy Saturday | Observance |
| 9 Apr, 2023 (Sun) | Easter Sunday | Observance |
| 10 Apr, 2023 (Mon) | Easter Monday | Autonomous Community Holiday |
| 22 Apr, 2023 (Sat) | Eid al-Fitr | Observance |
| 22 Apr, 2023 (Sat) | Eid al-Fitr | Autonomous Community Holiday |
| 23 Apr, 2023 (Sun) | Day of Aragón | Autonomous Community Holiday |
| 23 Apr, 2023 (Sun) | St George's Day | Observance |
| 23 Apr, 2023 (Sun) | Castile and León Day | Autonomous Community Holiday |
| 24 Apr, 2023 (Mon) | Day off for Day of Aragón | Autonomous Community Holiday |
| 1 May, 2023 (Mon) | Labor Day / May Day | National holiday |
| 2 May, 2023 (Tue) | Day of Madrid | Autonomous Community Holiday |
| 7 May, 2023 (Sun) | Mothers' Day | Observance |
| 17 May, 2023 (Wed) | Galicia Literature Day | Autonomous Community Holiday |
| 28 May, 2023 (Sun) | Whit Sunday/Pentecost | Observance |
| 29 May, 2023 (Mon) | Whit Monday | Observance |
| 30 May, 2023 (Tue) | Day of the Canary Islands | Autonomous Community Holiday |
| 31 May, 2023 (Wed) | Day of Castile-La Mancha | Autonomous Community Holiday |
| 8 Jun, 2023 (Thu) | Corpus Christi | Observance |
| 8 Jun, 2023 (Thu) | Corpus Christi | Autonomous Community Holiday |
| 9 Jun, 2023 (Fri) | Day of Murcia | Autonomous Community Holiday |
| 9 Jun, 2023 (Fri) | Day of La Rioja | Autonomous Community Holiday |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 24 Jun, 2023 (Sat) | Saint John the Baptist Day | Autonomous Community Holiday |
| 24 Jun, 2023 (Sat) | Saint John the Baptist Day | Observance |
| 29 Jun, 2023 (Thu) | Eid al-Adha | Autonomous Community Holiday |
| 25 Jul, 2023 (Tue) | Feast of Saint James the Apostle | Autonomous Community Holiday |
| 25 Jul, 2023 (Tue) | Feast of Saint James the Apostle | Observance |
| 28 Jul, 2023 (Fri) | Day of the Institutions | Autonomous Community Holiday |
| 5 Aug, 2023 (Sat) | The Day of Our Lady of Africa | Autonomous Community Holiday |
| 13 Aug, 2023 (Sun) | The Day of Cantabria | Observance |
| 15 Aug, 2023 (Tue) | Assumption of Mary | National holiday |
| 2 Sep, 2023 (Sat) | Day of the Independent City of Ceuta | Autonomous Community Holiday |
| 6 Sep, 2023 (Wed) | Elcano's Day | Observance |
| 8 Sep, 2023 (Fri) | Day of Asturias | Autonomous Community Holiday |
| 8 Sep, 2023 (Fri) | Day of Extremadura | Autonomous Community Holiday |
| 11 Sep, 2023 (Mon) | National Day of Catalonia | Autonomous Community Holiday |
| 15 Sep, 2023 (Fri) | Nuestra Señora de la Bien Aparecida | Autonomous Community Holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 9 Oct, 2023 (Mon) | Day of the Valencian Community | Autonomous Community Holiday |
| 12 Oct, 2023 (Thu) | Hispanic Day | National holiday |
| 29 Oct, 2023 (Sun) | Daylight Saving Time ends | Clock change/Daylight Saving Time |
| 1 Nov, 2023 (Wed) | All Saints' Day | National holiday |
| 6 Dec, 2023 (Wed) | Constitution Day | National holiday |
| 8 Dec, 2023 (Fri) | Immaculate Conception | National holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 24 Dec, 2023 (Sun) | Christmas Eve | Observance |
| 25 Dec, 2023 (Mon) | Christmas Day | National holiday |
| 26 Dec, 2023 (Tue) | St Stephen's Day | Autonomous Community Holiday |
| 26 Dec, 2023 (Tue) | St Stephen's Day | Observance |
| 31 Dec, 2023 (Sun) | Feast of the Holy Family | Observance |
| 31 Dec, 2023 (Sun) | New Year's Eve | Observance |
