William Elliston, D.D. (b Debenham 13 September 1777 - d Bungay 10 October 1813) was an academic in the late eighteenth and early nineteenth centuries.
Elliston was born at Great Bardfield and educated at St John's College, Cambridge. He was a Fellow of Sidney Sussex College, Cambridge from 1758 to 1760; and Master of Sidney from 1860 until his death on 11 February 1807. He was twice Vice-Chancellor of the University of Cambridge: from 1763 to 1764, and 1786 to 1787. Elliston was ordained a priest of the Church of England in 1759 and was Rector of Keyston from 1764 until his death.