1863 in Australia
- Governor of New South Wales — John Young, 1st Baron Lisgar
- Governor of Queensland — Sir George Bowen
- Governor of South Australia — Sir Dominick Daly
- Governor of Tasmania — Colonel Thomas Browne
- Governor of Victoria — Sir Henry Barkly until 10 September, then Sir Charles Darling
- Premier of New South Wales — Charles Cowper until 15 October, then James Martin
- Premier of Queensland — Robert Herbert
- Premier of South Australia — George Waterhouse until 4 July, then Francis Dutton until 15 July, then Henry Ayers
- Premier of Tasmania — Thomas Chapman until 20 January, then James Whyte
- Premier of Victoria — John O'Shanassy until 27 June, then James McCulloch
- 1 January — The Torrens title system is introduced in New South Wales with the commencement of the Real Property Act 1862.
- 7 February — The Sydney-based Royal Navy corvette HMS Orpheus sinks off the coast of New Zealand claiming 189 lives.
- 21 February — James Cockle is appointed the first Chief Justice of the Supreme Court of Queensland.
- 14 March — Queen Victoria issues Letters Patent granting Goulburn, New South Wales city status, making it Australia's first inland city.
- 6 July — Queen Victoria issues Letters Patent annexing to South Australia the part of the colony of New South Wales that would later become the Northern Territory.
- 11 November — Elizabeth Scott is hanged for the murder of her husband, making her the first woman to be executed in Victoria.
- South Sea Islanders are brought into Queensland to work as indentured labourers in the colony's sugar industry.
- Over 2,400 volunteers are recruited to fight in the New Zealand land wars.
Exploration and settlement
- 17 January — Explorer John McKinlay returns home to Gawler, South Australia after an unsuccessful two-year search for the missing Burke and Wills expedition.
- 28 April — Brewarrina, New South Wales proclaimed a township.
- 3 November — Banker wins the Melbourne Cup, in the smallest field in Cup history of six horses.
- 26 January — Charles Wade, Premier of New South Wales (died 1922)
- 14 July — Arthur Coningham, cricketer (died 1939)
- 16 July — Anderson Dawson, Premier of Queensland (died 1910)
- 26 October — Neville Howse, first Australian recipient of the Victoria Cross (died 1930)
- 26 October — John Henry Michell, mathematician (died 1940)
- 29 November — Adrian Knox, second Chief Justice of the High Court (died 1932)
- 5 February — John Wroe (born 1782), British evangelist, founder of the Christian Israelite Church
- 8 March – Samuel Stocks, South Australian businessman (b. c. 1786)
- 26 March — James Drummond (born 1786 or 1787), botanist
- 28 April — James Dickson (born 1913), New South Wales politician
- 5 July — Thomas Brown (born 1803), Western Australian politician
- 26 October — Gotthard Fritzsche (born 1797), Lutheran pastor
- Torrens Title, NSW Land and Property Management Authority. Archived 31 December 2010 at the Wayback Machine.
- Letters Patent annexing the Northern Territory to South Australia, 1863, National Archives of Australia.