Robert Duval

{{Short description|French alchemist (1510–1567)}}

{{For|the American actor|Robert Duvall}}

Robert Duval (c. 1510–1567), also referred as Robertus Vallensis, was a French alchemist. In 1886, John Ferguson stated that the De veritate et antiquitate artis chemicae by Duval stands out as 'the first history of chemistry.'John Ferguson, The First History of Chemistry, Proceedings of the Royal Philosophical Society of Glasgow 17 (1885–1886): 206-22.

This work was published in 1561, in Paris.Barbara Obrist, 'Views on History of Medieval Alchemical Writings', Ambix 56, November 2009, 226-238.