Charnay may refer to:
Désiré Charnay (1828-1915), a French traveller and archaeologist
Charnay is the name or part of the name of several communes in France:
Charnay, in the Doubs département Charnay, in the Rhône département Charnay-lès-Chalon, in the Saône-et-Loire département Charnay-lès-Mâcon, in the Saône-et-Loire département