List of 2011 public holidays

* Substitute days because 25 December is on a Sunday and 26 December is on a Monday.
** An additional day declared by the Minister in ACT in recognition that Anzac Day and Easter Monday fall on the same day in 2011.
***Additional public holiday appointed by Minister.

* Additional public holiday.
** Substituted public holiday for Easter Monday.
*** Additional public holiday.
**** Substituted for Christmas Day Sunday 25 December.
***** Substituted for Boxing Day 26 December. 

* Additional public holiday appointed by the NT Minister as both Easter Monday and Anzac Day fall on Monday 25 April 2011.
** Additional day appointed by NT Minister on 3-11-11 because Christmas Day falls on a Sunday.
*** Substituted day for Christmas Day because it falls on a Sunday (note-normal operation of NT Public Holidays Act).
**** Substituted day for Boxing Day because it falls on a Monday (note-normal operation of NT Public Holidays Act).

Regional observance only

* The Holidays Act 1983 (Qld), as amended by the Holidays Amendment Act 2010 on 7 October 2010, provides for both days to be observed as public holidays in 2011.
**The Queensland Government has appointed Tuesday 26 April 2011 as a substitute public holiday for Easter Monday.
*** Show holidays and other special holidays are also observed on various dates in other regions.
****The Holidays Act 1983 (Qld), as amended by the Holidays and Other Legislation Amendment Act 2011 provides for an additional day to be observed as a public holiday because Christmas Day is on a Sunday.

* Substitute for Saturday 1 January.
** Additional day appointed due to Easter Monday and Anzac Day both falling on 25 April in 2011
*** 26 December is an additional public holiday because 25 December is on a Sunday. It is also a public holiday because of Proclamation Day / Boxing Day
**** 27 December is an additional public holiday because 26 December is on a Monday

Note: every Sunday in South Australia is a public holiday under the Holidays Act 1910 (SA).

* Substitute public holiday.
** 27 December is an aAdditional public holiday because 25 December is on a Sunday. 

* Additional public holiday.
** Substitute for Monday 25 April.
*** All of Victoria unless a substitute day is declared by the Minister for a non-metropolitan Council district. See Victorian Non-Metropolitan Public Holidays 2011  for a full list.
**** Substitute for Sunday 25 December. 

* A special public holiday was proclaimed for Tuesday 26 April as both ANZAC Day and Easter Monday fall on Monday 25 April in 2011.
** Friday 28 October 2011 has been announced as the intended date for the Queen's Birthday public holiday but has not yet been formalised as at 17-11-10. The Queen’s Birthday holiday is observed on alternative dates in certain regions by proclamation by the Governor but has not yet been formalised as at 17-11-10.
***26 December is an additional public holiday because 25 December is on a Sunday. It is also a public holiday for Boxing Day.
****27 December is an additional public holiday because 26 December is on a Monday.