| 1 Jan, 2023 (Sun) | New Year's Day | National holiday |
| 6 Jan, 2023 (Fri) | Epiphany | National holiday |
| 22 Feb, 2023 (Wed) | Ash Wednesday | Observance |
| 19 Mar, 2023 (Sun) | Father's Day | Observance |
| 21 Mar, 2023 (Tue) | March Equinox | Season |
| 7 Apr, 2023 (Fri) | Good Friday | Observance |
| 9 Apr, 2023 (Sun) | Easter Sunday | National holiday |
| 10 Apr, 2023 (Mon) | Easter Monday | National holiday |
| 25 Apr, 2023 (Tue) | Liberation Day | National holiday |
| 25 Apr, 2023 (Tue) | The Feast of St Mark (Venice) | Local holiday |
| 1 May, 2023 (Mon) | Labor Day / May Day | National holiday |
| 14 May, 2023 (Sun) | Mother's Day | Observance |
| 2 Jun, 2023 (Fri) | Republic Day | National holiday |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 24 Jun, 2023 (Sat) | The Feast of St. John (Florence, Genoa, Turin) | Local holiday |
| 29 Jun, 2023 (Thu) | The Feast of St. Peter and St. Paul (Rome) | Local holiday |
| 15 Aug, 2023 (Tue) | Assumption of Mary | National holiday |
| 15 Aug, 2023 (Tue) | Ferragosto | Observance |
| 19 Sep, 2023 (Tue) | The Feast of Saint Januarius (Naples) | Local holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 1 Nov, 2023 (Wed) | All Saints' Day | National holiday |
| 7 Dec, 2023 (Thu) | The Feast of St. Ambrose (Milan) | Local holiday |
| 8 Dec, 2023 (Fri) | Feast of the Immaculate Conception | 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 |
| 31 Dec, 2023 (Sun) | New Year's Eve | Observance |
