Sir George Macleay(1809 – 24 June 1891) was an Australian explorer and politician.
In November 1829 he accompanied Charles Sturt on his second expedition to the mouth of the Murray River and back. Early in April 1830, after difficulties on the expedition and the whole party was practically exhausted, Sturt recorded that "amidst these distresses Macleay preserved his good humour and did his utmost to lighten the toil and to cheer the men". Macleay and Sturt remained good friends and corresponded regularly until Sturt's death in 1869.
In 1854 Macleay was elected to the New South Wales Legislative Council for the Pastoral District of Murrumbidgee. In 1856 the unicameral Legislative Council was abolished and replaced with an elected Legislative Assembly and an appointed Legislative Council and Macleay was elected to the Legislative Assembly for Murrumbidgee. He was a conservative. He declined a ministry position in Henry Parker's brief premiership in 1857.
In 1859 Macleay returned to England where he was elected a fellow of the Linnean Society in 1860. He spent the remainder of his life in the south of France apart from returning briefly to Sydney in 1873 to finalise his affairs there. He also travelled in his steam yacht to the Greek islands, Turkey and Syria.
Macleay was also a keen zoologist, he donated fossil specimens he collected from the Murrumbidgee River to the Australian Museum. He was also a museum trustee and contributed to Richard Owen's book on the fossils of Australia. On his 1873 visit, he collected a Queensland lungfish or Ceratodus forsteri (now called Neoceratodus forsteri) and took it back to London for T. H. Huxley to dissect and describe in an 1876 paper which identified the supplier as "my friend Sir George Macleay ... on a recent visit to Australia".
Charles Sturt named the Rufus River in south-western New South Wales in Macleay's honour, as he had red hair, and Point McLeay was (mis-)named for him by T. B. Strangways and Hutchinson in 1837.
- Serle, Percival (1949). "Macleay, George". Dictionary of Australian Biography. Sydney: Angus and Robertson.
- "Sir George Macleay, KCMG (1809-1891)". Former Members of the Parliament of New South Wales. Retrieved 6 June 2019.
- Macmillan, David S (1967). "Macleay, Sir George (1809 - 1891)". Australian Dictionary of Biography. 2. Melbourne University Press. ISSN 1833-7538 – via National Centre of Biography, Australian National University.
- Huxley, T H (January 1876). Contributions to Morphology. Ichthyopsida.—No. 1. On Ceratodus forsteri, with Observations on the Classification of Fishes. Proceedings of the Zoological Society of London. 44. pp. 24–59.
- "Rufus River". Geographical Names Register (GNR) of NSW. Geographical Names Board of New South Wales. Retrieved 10 February 2013.
- "To His Excellency". South Australian Gazette and Colonial Register (Adelaide, SA : 1836 - 1839). Adelaide, SA. 20 January 1838. p. 3. Retrieved 14 December 2015 – via Trove.
|New South Wales Legislative Council|
|New district|| Member for Murrumbidgee
1851 – 1855
|New South Wales Legislative Assembly|
| Member for Murrumbidgee
1856 – 1859
Served alongside: Hay