| 1 Jan, 2023 (Sun) | New Year's Day | De facto holiday |
| 6 Jan, 2023 (Fri) | Epiphany | De facto holiday |
| 30 Jan, 2023 (Mon) | The Three Holy Hierarchs | Observance |
| 14 Feb, 2023 (Tue) | Valentine's Day | Observance |
| 27 Feb, 2023 (Mon) | Clean Monday | De facto holiday |
| 21 Mar, 2023 (Tue) | March Equinox | Season |
| 25 Mar, 2023 (Sat) | Greek Independence Day | National holiday |
| 25 Mar, 2023 (Sat) | Annunciation of the Virgin Mary | National holiday |
| 14 Apr, 2023 (Fri) | Orthodox Good Friday | De facto holiday |
| 16 Apr, 2023 (Sun) | Orthodox Easter Sunday | Observance |
| 17 Apr, 2023 (Mon) | Orthodox Easter Monday | National holiday |
| 1 May, 2023 (Mon) | Labor Day / May Day | National holiday |
| 14 May, 2023 (Sun) | Mother’s Day | Observance |
| 4 Jun, 2023 (Sun) | Orthodox Holy Spirit Sunday | Observance |
| 5 Jun, 2023 (Mon) | Orthodox Holy Spirit Monday | De facto holiday |
| 18 Jun, 2023 (Sun) | Father's Day | Observance |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 24 Jul, 2023 (Mon) | The Restoration of Democracy | Observance |
| 15 Aug, 2023 (Tue) | Dormition of the Holy Virgin | National holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 28 Oct, 2023 (Sat) | The Ochi day | De facto holiday |
| 17 Nov, 2023 (Fri) | Polytechneio | Observance |
| 21 Nov, 2023 (Tue) | Armed Forces Day | Observance |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 25 Dec, 2023 (Mon) | Christmas Day | National holiday |
| 26 Dec, 2023 (Tue) | Synaxis of the Mother of God | National holiday |
