Alexander Borthwick Murray (14 February 1816 – 17 March 1903) was an Australian sheep breeder and parliamentarian in the early days of South Australia.

After spending six years acclimatizing Cheviot sheep to the highlands of Inverness and Ross-shire he emigrated as a full fare-paying passenger in the Lady Lillford to South Australia, arriving at Holdfast Bay on 27 September 1839.

[1] His efforts were met with problems of smut, cost of transport to the mill at Kent Town, and low prices brought about by the then recession, and he decided wheat farming was not for him.

Murray ran sheep on Myrtle Springs and, in partnership with Leonard G. Browne (who for many years owned Buckland Park Estate), one at Leigh's Creek, but lost money prospecting for water, relinquished his interest in these properties.

At the "Grand General Show" held during the visit of Prince Alfred, Duke of Edinburgh in November 1867, his entries "scooped the pool" of prizes for merino sheep.

[8] Murray supported compulsory implementation the Real Property Act (Torrens Title), as a way of depriving usurious lawyers of a source of unearned revenue.

He reentered the Legislative Council in July 1880, which he held until 14 April 1888,[10] when he retired to his home, 'Murray Park', at Magill and was appointed Justice of the Peace.