Portal:Australia/Anniversaries/October/October 5
- 1892 – The Australian Cricket Council announces an intercolonial cricket competition to be known as the Sheffield Shield.
- 1903 – Samuel Griffith is appointed as the first Chief Justice of Australia.
- 1933 – Diane Cilento, theater and film actress was born in Brisbane.
- 1979 – Vince Grella, football (soccer) midfielder, and member of Australia's 2006 World Cup team was born in Dandenong, Victoria.
- 1990 – After one hundred and fifty years, The Herald broadsheet newspaper in Melbourne is published for the last time as a separate newspaper. The first edition of the Herald-Sun appears on the 8th of October.
- 1990 – The Daily Mirror in Sydney is published for the last time as a separate newspaper. The first edition of The Daily Telegraph-Mirror appears on the 8th of October.