Charles Eugene Barrois (21 August 1851 – 5 November 1939) was a French geologist and palaeontologist.
Barrois was born at Lille and educated at the Jesuit College of St Joseph in that town, where he studied geology under Professor Jules Gosselet.
His first comprehensive work was Recherches sur le terrain crétacé supérieur de l’Angleterre et de l'Irlande, published in the Mémoires de la societé geologique du Nord in 1876. In this essay the palaeontological zones in the Chalk and Upper Greensand of Britain were for the first time marked out in detail, and the results of Dr Barrois's original researches formed the basis of subsequent work, and were in all leading features confirmed. In 1876 Dr Barrois was appointed a collaborateur to the French Geological Survey, and a professor of geology in the University of Lille in 1877. In 1936 he was appointed member of the Pontifical Academy of Sciences.
In other memoirs, among which may be mentione