- 24 January - International Day of Education
- 13 February - Anniversary of National Apology Day
- 8 March - International Women's Day
- 15 March - World Sleep Day
- 18 - 24 March - Neurodiversity Celebration Week
- 20 March - International Day of Happiness
- 21 March - Harmony Day
- 22 April - Earth Day
- 28 April - World Day for Safety and Health at Work
- 12 May - International Nurses Day
- 17 May - International Day Against Homophobia, Biphobia, Intersexism and Transphobia
- 21 May - World Day for Cultural Diversity for Dialogue and Development
- 26 May - National Sorry Day
- 3 June - Mabo Day
- 10 - 16 June - International Men's Health Week
- 21 June - Take Your Dog to Work Day
- 7-14 July - NAIDOC Week
- 11 July - World Population Day
- 30 July - International Day of Friendship
- 4 August - National Aboriginal and Torres Strait Islander Children's Day
- 7 August - Aged Care Employee Day
- 5 - 11 August - Loneliness Awareness Week Australia
- 9 August - International Day of the World's Indigenous Peoples
- 30 August - Wear it Purple Day
- 2 - 6 September - Women's Health Week
- 10 September - World Suicide Prevention Day
- 12 September - R U OK Day
- October - Mental Health Month
- October - National Safe Work Month
- 10 October - World Mental Health Day
- 11 October - National Coming Out Day
- 25 October - World Teacher's Day
- November - Movember
- 13 November - World Kindness Day
- 16 November - International Day for Tolerance
- 19 November - International Men’s Day
- 25 November - International Day for the Elimination of Violence against Women
- 28 November - World Compassion Day
- x November - Aus Music T-shirt Day
- 3 December - International Day of People with Disability
- 5 December - International Volunteer Day
