John Stuart Hawthorne (14 February 1848 – 30 July 1942) was an Australian politician.
Born in Sydney to James Hawthorne and Jane Elkins, he attended Cleveland Street Public School before working with a softgoods firm, establishing his own business in 1875. In that year he married Mary Emily Meyn at Singleton, with whom he had nine children. In 1884 he was bankrupted; he was discharged in 1885, becoming an auctioneer and estate agent at Leichhardt. He was bankrupted again in 1890 and discharged in 1891. In 1885 he was elected to the New South Wales Legislative Assembly for Balmain, serving until 1891 (later as a Free Trader). In 1894 he returned to the Assembly as the member for Leichhardt, serving until 1904. Hawthorne died at Summer Hill in 1942.[1]