| 1 Jan, 2023 (Sun) | New Year's Day | Statutory Holiday |
| 2 Jan, 2023 (Mon) | Day off for New Year's Day | Statutory Holiday |
| 2 Jan, 2023 (Mon) | Day After New Year’s Day | Local holiday |
| 6 Jan, 2023 (Fri) | Epiphany | Observance, 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 |
| 2 Feb, 2023 (Thu) | Groundhog Day | Observance |
| 6 Feb, 2023 (Mon) | Tu B'Shevat (Arbor Day) | Jewish holiday |
| 14 Feb, 2023 (Tue) | Valentine's Day | Observance |
| 15 Feb, 2023 (Wed) | National Flag of Canada Day | Observance |
| 18 Feb, 2023 (Sat) | Isra and Mi'raj | Muslim |
| 20 Feb, 2023 (Mon) | Louis Riel Day | Common local holiday |
| 20 Feb, 2023 (Mon) | Nova Scotia Heritage Day | Common local holiday |
| 20 Feb, 2023 (Mon) | Islander Day | Common local holiday |
| 20 Feb, 2023 (Mon) | Family Day | Common local holiday |
| 21 Feb, 2023 (Tue) | Carnival / Shrove Tuesday / Pancake Day | Christian |
| 22 Feb, 2023 (Wed) | Ash Wednesday | Christian |
| 24 Feb, 2023 (Fri) | Yukon Heritage Day | Local de facto holiday |
| 1 Mar, 2023 (Wed) | St David's Day | Observance |
| 7 Mar, 2023 (Tue) | Purim | Jewish holiday |
| 12 Mar, 2023 (Sun) | Daylight Saving Time starts | Clock change/Daylight Saving Time |
| 13 Mar, 2023 (Mon) | Commonwealth Day | Observance |
| 17 Mar, 2023 (Fri) | St. Patrick's Day | Observance |
| 20 Mar, 2023 (Mon) | St. Patrick's Day | Local holiday |
| 20 Mar, 2023 (Mon) | March Equinox | Season |
| 23 Mar, 2023 (Thu) | Ramadan Start | Muslim |
| 2 Apr, 2023 (Sun) | Palm Sunday | Christian |
| 6 Apr, 2023 (Thu) | Maundy Thursday | Christian |
| 6 Apr, 2023 (Thu) | First day of Passover | Jewish holiday |
| 6 Apr, 2023 (Thu) | Tartan Day | Observance |
| 7 Apr, 2023 (Fri) | Good Friday | Statutory Holiday |
| 8 Apr, 2023 (Sat) | Holy Saturday | Christian |
| 9 Apr, 2023 (Sun) | Easter Sunday | Shops Closing Day |
| 9 Apr, 2023 (Sun) | Easter Sunday | Designated Retail Closing Day |
| 9 Apr, 2023 (Sun) | Easter Sunday | Observance, Christian |
| 9 Apr, 2023 (Sun) | Vimy Ridge Day | Observance |
| 10 Apr, 2023 (Mon) | Easter Monday | Statutory Holiday |
| 10 Apr, 2023 (Mon) | Easter Monday | Optional holiday |
| 10 Apr, 2023 (Mon) | Easter Monday | Local de facto 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 |
| 21 Apr, 2023 (Fri) | Eid ul Fitr | Muslim |
| 24 Apr, 2023 (Mon) | St. George's Day | Local holiday |
| 26 Apr, 2023 (Wed) | Yom HaAtzmaut | Jewish 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) | Mothers' Day | Observance |
| 18 May, 2023 (Thu) | Ascension Day | Christian |
| 22 May, 2023 (Mon) | National Patriots' Day | Local holiday |
| 22 May, 2023 (Mon) | Victoria Day | Statutory Holiday |
| 26 May, 2023 (Fri) | Shavuot | Jewish holiday |
| 28 May, 2023 (Sun) | Pentecost | Christian |
| 29 May, 2023 (Mon) | Whit Monday | Christian |
| 4 Jun, 2023 (Sun) | Trinity Sunday | Christian |
| 8 Jun, 2023 (Thu) | Corpus Christi | Christian |
| 18 Jun, 2023 (Sun) | Fathers' Day | Observance |
| 21 Jun, 2023 (Wed) | National Indigenous Peoples Day | Observance |
| 21 Jun, 2023 (Wed) | National Indigenous Peoples Day | Local holiday |
| 21 Jun, 2023 (Wed) | June Solstice | Season |
| 24 Jun, 2023 (Sat) | St. Jean Baptiste Day | Local holiday |
| 26 Jun, 2023 (Mon) | June Holiday | Local holiday |
| 28 Jun, 2023 (Wed) | Eid al-Adha | Muslim |
| 1 Jul, 2023 (Sat) | Memorial Day | Local holiday |
| 1 Jul, 2023 (Sat) | Canada Day | Statutory Holiday |
| 9 Jul, 2023 (Sun) | Nunavut Day | Local holiday |
| 10 Jul, 2023 (Mon) | Nunavut Day observed | Local holiday |
| 10 Jul, 2023 (Mon) | Orangemen's Day | Local holiday |
| 19 Jul, 2023 (Wed) | Muharram/Islamic New Year | Muslim |
| 27 Jul, 2023 (Thu) | Tisha B'Av | Jewish holiday |
| 28 Jul, 2023 (Fri) | Ashura | Muslim |
| 2 Aug, 2023 (Wed) | The Royal St John's Regatta (Regatta Day) | Local holiday |
| 7 Aug, 2023 (Mon) | Civic/Provincial Day | Statutory Holiday |
| 7 Aug, 2023 (Mon) | Civic/Provincial Day | Local observance |
| 7 Aug, 2023 (Mon) | Saskatchewan Day | Common local holiday |
| 7 Aug, 2023 (Mon) | Terry Fox Day | Local observance |
| 7 Aug, 2023 (Mon) | New Brunswick Day | Prescribed Day of Rest |
| 7 Aug, 2023 (Mon) | British Columbia Day | Common local holiday |
| 7 Aug, 2023 (Mon) | Natal Day | Common local holiday |
| 7 Aug, 2023 (Mon) | Heritage Day | Optional holiday |
| 15 Aug, 2023 (Tue) | Assumption of Mary | Christian |
| 18 Aug, 2023 (Fri) | Gold Cup Parade | Local holiday |
| 21 Aug, 2023 (Mon) | Discovery Day | Local holiday |
| 4 Sep, 2023 (Mon) | Labour Day | Statutory Holiday |
| 16 Sep, 2023 (Sat) | Rosh Hashana | Jewish holiday |
| 23 Sep, 2023 (Sat) | September Equinox | Season |
| 25 Sep, 2023 (Mon) | Yom Kippur | Jewish holiday |
| 27 Sep, 2023 (Wed) | Milad un Nabi (Mawlid) (Tentative Date) | Muslim |
| 30 Sep, 2023 (Sat) | First day of Sukkot | Jewish holiday |
| 30 Sep, 2023 (Sat) | National Day for Truth and Reconciliation | Federal Employees Holiday |
| 30 Sep, 2023 (Sat) | National Day for Truth and Reconciliation | Statutory 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 |
| 9 Oct, 2023 (Mon) | Thanksgiving Day | Statutory Holiday |
| 9 Oct, 2023 (Mon) | Thanksgiving Day | Designated Retail Closing Day |
| 9 Oct, 2023 (Mon) | Thanksgiving Day | Observance |
| 18 Oct, 2023 (Wed) | Healthcare Aide Day | Local observance |
| 31 Oct, 2023 (Tue) | Halloween | Observance |
| 1 Nov, 2023 (Wed) | All Saints' Day | Observance, Christian |
| 2 Nov, 2023 (Thu) | All Souls' Day | Observance, Christian |
| 5 Nov, 2023 (Sun) | Daylight Saving Time ends | Clock change/Daylight Saving Time |
| 8 Nov, 2023 (Wed) | National Aboriginal Veterans Day | Observance |
| 11 Nov, 2023 (Sat) | Remembrance Day | Statutory 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 |
| 11 Dec, 2023 (Mon) | Anniversary of the Statute of Westminster | Observance |
| 15 Dec, 2023 (Fri) | Last day of Hanukkah | Jewish holiday |
| 22 Dec, 2023 (Fri) | December Solstice | Season |
| 24 Dec, 2023 (Sun) | Christmas Eve | Observance |
| 25 Dec, 2023 (Mon) | Christmas Day | Statutory Holiday |
| 26 Dec, 2023 (Tue) | Kwanzaa (first day) | Observance |
| 26 Dec, 2023 (Tue) | Boxing Day | Statutory Holiday |
| 26 Dec, 2023 (Tue) | Boxing Day | Designated Retail Closing Day |
| 26 Dec, 2023 (Tue) | Boxing Day | Local de facto holiday |
| 26 Dec, 2023 (Tue) | Boxing Day | Optional holiday |
| 26 Dec, 2023 (Tue) | Boxing Day | Provincial Public Sector Holiday |
| 31 Dec, 2023 (Sun) | New Year's Eve | Observance |
