| 1 Jan, 2023 (Sun) | New Year's Day | National Holiday |
| 2 Jan, 2023 (Mon) | Day off for New Year's Day | State Holiday |
| 6 Jan, 2023 (Fri) | Epiphany | Christian |
| 7 Jan, 2023 (Sat) | Orthodox Christmas Day | Orthodox |
| 14 Jan, 2023 (Sat) | Orthodox New Year | Orthodox |
| 22 Jan, 2023 (Sun) | Lunar New Year | Observance |
| 22 Jan, 2023 (Sun) | Lunar New Year | State Holiday |
| 23 Jan, 2023 (Mon) | Lunar New Year Holiday (Day 2) | State Holiday |
| 26 Jan, 2023 (Thu) | Australia Day | National Holiday |
| 6 Feb, 2023 (Mon) | Tu B'Shevat (Arbor Day) | Jewish holiday |
| 13 Feb, 2023 (Mon) | Royal Hobart Regatta | State Holiday |
| 14 Feb, 2023 (Tue) | Valentine's Day | Observance |
| 18 Feb, 2023 (Sat) | Isra and Mi'raj | Muslim |
| 21 Feb, 2023 (Tue) | Carnival / Shrove Tuesday / Pancake Day | Christian |
| 22 Feb, 2023 (Wed) | Ash Wednesday | Christian |
| 6 Mar, 2023 (Mon) | Labour Day | State Holiday |
| 7 Mar, 2023 (Tue) | Purim | Jewish holiday |
| 13 Mar, 2023 (Mon) | Labour Day | State Holiday |
| 13 Mar, 2023 (Mon) | Adelaide Cup | State Holiday |
| 13 Mar, 2023 (Mon) | Canberra Day | State Holiday |
| 16 Mar, 2023 (Thu) | National Close the Gap Day | Observance |
| 17 Mar, 2023 (Fri) | St Patrick's Day | Observance |
| 21 Mar, 2023 (Tue) | Harmony Day | Observance |
| 21 Mar, 2023 (Tue) | March Equinox | Season |
| 23 Mar, 2023 (Thu) | Ramadan Start | Muslim |
| 2 Apr, 2023 (Sun) | Palm Sunday | Christian |
| 2 Apr, 2023 (Sun) | Daylight Saving Time ends | Clock change/Daylight Saving Time |
| 6 Apr, 2023 (Thu) | Maundy Thursday | Christian |
| 6 Apr, 2023 (Thu) | First day of Passover | Jewish holiday |
| 6 Apr, 2023 (Thu) | Self Determination Day | State Holiday |
| 7 Apr, 2023 (Fri) | Good Friday | Restricted Trading Day |
| 7 Apr, 2023 (Fri) | Good Friday | National Holiday |
| 8 Apr, 2023 (Sat) | Holy Saturday | State Holiday |
| 9 Apr, 2023 (Sun) | Easter Sunday | State Holiday |
| 9 Apr, 2023 (Sun) | Easter Sunday | Observance |
| 10 Apr, 2023 (Mon) | Easter Monday | National Holiday |
| 11 Apr, 2023 (Tue) | Easter Tuesday | State Public Sector Holiday |
| 13 Apr, 2023 (Thu) | Last day of Passover | Jewish holiday |
| 14 Apr, 2023 (Fri) | Orthodox Good Friday | Orthodox |
| 15 Apr, 2023 (Sat) | Orthodox Holy Saturday | Orthodox |
| 16 Apr, 2023 (Sun) | Orthodox Easter | Orthodox |
| 17 Apr, 2023 (Mon) | Laylatul Qadr (Night of Power) | Muslim |
| 17 Apr, 2023 (Mon) | Orthodox Easter Monday | Orthodox |
| 18 Apr, 2023 (Tue) | Yom HaShoah | Jewish commemoration |
| 22 Apr, 2023 (Sat) | Eid ul Fitr | Muslim |
| 22 Apr, 2023 (Sat) | Hari Raya Puasa | State Holiday |
| 24 Apr, 2023 (Mon) | Day off for Hari Raya Puasa | State Holiday |
| 25 Apr, 2023 (Tue) | ANZAC Day | National Holiday |
| 25 Apr, 2023 (Tue) | ANZAC Day Observed | Half Day Restricted Trading Day |
| 26 Apr, 2023 (Wed) | Yom HaAtzmaut | Jewish holiday |
| 1 May, 2023 (Mon) | May Day | State Holiday |
| 6 May, 2023 (Sat) | The Coronation of King Charles III | Observance |
| 9 May, 2023 (Tue) | Lag B'Omer | Jewish holiday |
| 14 May, 2023 (Sun) | Mother's Day | Observance |
| 18 May, 2023 (Thu) | Ascension Day | Christian |
| 26 May, 2023 (Fri) | Shavuot | Jewish holiday |
| 26 May, 2023 (Fri) | National Sorry Day | Observance |
| 28 May, 2023 (Sun) | Pentecost | Christian |
| 29 May, 2023 (Mon) | Whit Monday | Christian |
| 29 May, 2023 (Mon) | Reconciliation Day | State Holiday |
| 4 Jun, 2023 (Sun) | Trinity Sunday | Christian |
| 5 Jun, 2023 (Mon) | Western Australia Day | State Holiday |
| 6 Jun, 2023 (Tue) | Queensland Day | Local observance |
| 8 Jun, 2023 (Thu) | Corpus Christi | Christian |
| 12 Jun, 2023 (Mon) | King's Birthday | State Holiday |
| 22 Jun, 2023 (Thu) | June Solstice | Season |
| 28 Jun, 2023 (Wed) | Eid al-Adha | Muslim |
| 29 Jun, 2023 (Thu) | Eid al-Adha | Muslim |
| 29 Jun, 2023 (Thu) | Hari Raya Haji | State Holiday |
| 2 Jul, 2023 (Sun) | First Day of NAIDOC Week | Observance |
| 20 Jul, 2023 (Thu) | Muharram/Islamic New Year | Muslim |
| 27 Jul, 2023 (Thu) | Tisha B'Av | Jewish holiday |
| 28 Jul, 2023 (Fri) | Ashura | Muslim |
| 29 Jul, 2023 (Sat) | Ashura | Muslim |
| 7 Aug, 2023 (Mon) | New South Wales Bank Holiday | State Bank Holiday |
| 7 Aug, 2023 (Mon) | Northern Territory Picnic Day | State Holiday |
| 15 Aug, 2023 (Tue) | Assumption of Mary | Christian |
| 16 Aug, 2023 (Wed) | Royal National Agricultural Show Day Queensland | State Holiday |
| 3 Sep, 2023 (Sun) | Fathers' Day | Observance |
| 16 Sep, 2023 (Sat) | Rosh Hashana | Jewish holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 25 Sep, 2023 (Mon) | Yom Kippur | Jewish holiday |
| 25 Sep, 2023 (Mon) | King's Birthday | State Holiday |
| 27 Sep, 2023 (Wed) | Milad un Nabi (Mawlid) | Muslim |
| 27 Sep, 2023 (Wed) | Hari Maulad Nabi | State Holiday |
| 29 Sep, 2023 (Fri) | Friday before the AFL Grand Final (Tentative Date) | State Holiday |
| 30 Sep, 2023 (Sat) | First day of Sukkot | Jewish holiday |
| 1 Oct, 2023 (Sun) | Daylight Saving Time starts | Clock change/Daylight Saving Time |
| 2 Oct, 2023 (Mon) | Territory Day | State Holiday |
| 2 Oct, 2023 (Mon) | King's Birthday | State Holiday |
| 2 Oct, 2023 (Mon) | Labour Day | State Holiday |
| 4 Oct, 2023 (Wed) | Feast of St Francis of Assisi | Christian |
| 6 Oct, 2023 (Fri) | Hoshana Rabbah | Jewish holiday |
| 7 Oct, 2023 (Sat) | Shemini Atzeret | Jewish holiday |
| 8 Oct, 2023 (Sun) | Simchat Torah | Jewish holiday |
| 15 Oct, 2023 (Sun) | International Pregnancy and Infant Loss Remembrance Day | Observance |
| 26 Oct, 2023 (Thu) | Royal Hobart Show | State Holiday |
| 31 Oct, 2023 (Tue) | Halloween | Observance |
| 1 Nov, 2023 (Wed) | All Saints' Day | Christian |
| 2 Nov, 2023 (Thu) | All Souls' Day | Christian |
| 6 Nov, 2023 (Mon) | Recreation Day | State Holiday |
| 7 Nov, 2023 (Tue) | Melbourne Cup Day | State Holiday |
| 11 Nov, 2023 (Sat) | Remembrance Day | Observance |
| 12 Nov, 2023 (Sun) | Diwali/Deepavali | Observance |
| 3 Dec, 2023 (Sun) | First Sunday of Advent | Observance |
| 8 Dec, 2023 (Fri) | Feast of the Immaculate Conception | Christian |
| 8 Dec, 2023 (Fri) | First Day of Hanukkah | Jewish holiday |
| 15 Dec, 2023 (Fri) | Last day of Hanukkah | Jewish holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 24 Dec, 2023 (Sun) | Christmas Eve | Observance |
| 24 Dec, 2023 (Sun) | Christmas Eve | Part Day Holiday |
| 25 Dec, 2023 (Mon) | Christmas Day | National Holiday |
| 25 Dec, 2023 (Mon) | Christmas Day | Restricted Trading Day |
| 26 Dec, 2023 (Tue) | Boxing Day | National Holiday |
| 26 Dec, 2023 (Tue) | Proclamation Day | State Holiday |
| 31 Dec, 2023 (Sun) | New Year's Eve | Observance |
| 31 Dec, 2023 (Sun) | New Year's Eve | Part Day Holiday |
