William Sandys Wright Vaux FRS (28 February 1818 – 21 June 1885), was a celebrated English antiquary and numismatist of the 19th century.
He was educated at Westminster School from 1831 to 1836, and matriculated from Balliol College, Oxford, on 18 March 1836, graduating BA 1840 and M.A.
From 1846 he was a member of the Numismatic Society, and — according to the Dictionary of National Biography — to his friendly care much of the success of that body is due.
In 1852 he became one of the secretaries, and for some time assisted John Yonge Akerman in editing the first series of the Numismatic Chronicle, in which he himself wrote twenty-five papers.
His Nineveh and Persepolis: an Historical Sketch of Ancient Assyria and Persia, with an Account of the recent Researches in those Countries (1850; 4th ed.