William Murray (28 December 1819 – 18 October 1901) was a pioneering gardener of South Australia.
William, a professional gardener, was a native of Dumfriesshire, Scotland who emigrated to South Australia on the City of Adelaide, arriving in September 1841, following brothers Alexander Borthwick Murray and Pulteney Malcolm Murray who arrived in 1839 on the Lady Lilford.
Another brother John Murray (who was responsible for much of the improvement in merino breeding) also emigrated, either in 1841 or 1843.
He lived at Magill for about twelve months, then in 1842 moved to Myrtle Bank, where he planted out that and the Ridge Park garden, where the first olives were grown, and from which he extracted about 40 imperial gallons (180 L) of oil in 1857.
Around 1847 he purchased part of Glenunga Estate, where he conducted a nursery business.