Portal:Australia/Anniversaries/January/January 5
- 1891 – The 1891 Australian shearers' strike begins, which leads to the formation of the Australian Labor Party.
- 1966 – Construction of Waverley Park in Melbourne begins.
- 1975 – The first One-day International cricket match is played at the MCG, between Australia and England.
- 1975 – The Tasman Bridge disaster claims 12 lives.