| 1 Jan, 2023 (Sun) | New Year's Day | National holiday |
| 6 Jan, 2023 (Fri) | Epiphany | National holiday |
| 7 Jan, 2023 (Sat) | Orthodox Christmas Day | Optional holiday |
| 9 Jan, 2023 (Mon) | Međimurje Unification Day | Observance |
| 15 Jan, 2023 (Sun) | Day of the International Recognition of the Republic of Croatia | Observance |
| 15 Jan, 2023 (Sun) | Day of Peaceful Reintegration of the Croatian Danube Region | Observance |
| 15 Mar, 2023 (Wed) | Day of the Establishment of the National Protection in the Republic of Croatia | Observance |
| 19 Mar, 2023 (Sun) | Father’s Day | Observance |
| 21 Mar, 2023 (Tue) | March Equinox | Season |
| 23 Mar, 2023 (Thu) | Ramadan Start | Observance |
| 9 Apr, 2023 (Sun) | Easter Sunday | National holiday |
| 10 Apr, 2023 (Mon) | Easter Monday | National holiday |
| 16 Apr, 2023 (Sun) | Orthodox Easter Day | Optional holiday |
| 17 Apr, 2023 (Mon) | Orthodox Easter Monday | Optional holiday |
| 21 Apr, 2023 (Fri) | Ramadan Bayram | Optional holiday |
| 30 Apr, 2023 (Sun) | Day of the Deaths of Zrinski and Frankopan | Observance |
| 1 May, 2023 (Mon) | Labor Day / May Day | National holiday |
| 9 May, 2023 (Tue) | Europe Day and Victory Day Over Fascism | Observance |
| 14 May, 2023 (Sun) | Mother’s Day | Observance |
| 30 May, 2023 (Tue) | Statehood Day | National holiday |
| 8 Jun, 2023 (Thu) | Corpus Christi | National holiday |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 22 Jun, 2023 (Thu) | Day of Antifascist Struggle | National holiday |
| 25 Jun, 2023 (Sun) | Independence Day | Observance |
| 28 Jun, 2023 (Wed) | Kurban Bayram | Optional holiday |
| 5 Aug, 2023 (Sat) | Victory Day | National holiday |
| 15 Aug, 2023 (Tue) | Assumption of Mary | National holiday |
| 23 Aug, 2023 (Wed) | European Day of Remembrance of Victims of Totalitarian and Authoritarian Regimes | Observance |
| 30 Aug, 2023 (Wed) | Day of Remembrance of Missing Persons in the Homeland War | Observance |
| 16 Sep, 2023 (Sat) | Rosh Hashana | Optional holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 25 Sep, 2023 (Mon) | Yom Kippur | Optional holiday |
| 25 Sep, 2023 (Mon) | Unification Day of Istria, Rijeka, Zadar, and the Islands | Observance |
| 8 Oct, 2023 (Sun) | Day of the Croatian Parliament | Observance |
| 1 Nov, 2023 (Wed) | All Saints' Day | National holiday |
| 18 Nov, 2023 (Sat) | Remembrance Day | National holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 25 Dec, 2023 (Mon) | Christmas Day | National holiday |
| 26 Dec, 2023 (Tue) | St Stephen's Day | National holiday |
